==================================
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    FORM 10-K

             X ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                   For the fiscal year ended December 31, 1999

                                       OR

            TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

             For the transition period from___________ to __________

                         Commission file number 1-12830

                                  BioTime, Inc.

             (Exact name of registrant as specified in its charter)

               California                               94-3127919
     (State or other jurisdiction of                 (I.R.S. Employer
      incorporation or organization)                 Identification No.)

    935 Pardee Street, Berkeley, California                94710
    (Address of principal executive offices)             (Zip Code)

        Registrant's telephone number, including area code (510) 845-9535

                 Securities registered pursuant to Section 12(b)
of the Act:

                           Common Shares, no par value
                                (Title of Class)

         Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days. Yes X No

Indicate by check mark if disclosure of delinquent  filers  pursuant to Item 405
of Regulation  S-K is not contained  herein,  and will not be contained,  to the
best of registrant's  knowledge,  in definitive proxy or information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [X]

The approximate  aggregate market value of voting stock held by nonaffiliates of
the  registrant  was  $110,720,000  as of March 27,  2000.  Shares  held by each
executive  officer and  director and by each person who  beneficially  owns more
than 5% of the outstanding Common Shares have been excluded in that such persons
may under certain  circumstances be deemed to be affiliates.  This determination
of affiliate  status is not  necessarily  a conclusive  determination  for other
purposes.

                                   10,891,823

           (Number of Common Shares outstanding as of March 27, 2000)
                       Documents Incorporated by Reference
                                      None






                                     PART I

         Statements  made in this Form 10-K  that are not  historical  facts may
constitute   forward-   looking   statements  that  are  subject  to  risks  and
uncertainties  that could cause actual results to differ  materially  from those
discussed.  Words such as  "expects,"  "may,"  "will,"  "anticipates,""intends,"
"plans,"  "believes,"  "seeks,"  "estimates," and similar  expressions  identify
forward-looking   statements.  See  "Risk  Factors"  and  Note  1  to  Financial
Statements.

Item 1.  Description of Business

Overview

         BioTime,  Inc. (the  "Company" or  "BioTime")  is a  development  stage
company engaged in the research and development of synthetic  solutions that can
be used as blood plasma volume  expanders,  blood  replacement  solutions during
hypothermic (low temperature) surgery, and organ preservation solutions.  Plasma
volume  expanders  are used to treat blood loss in  surgical or trauma  patients
until blood loss becomes so severe that a transfusion  of packed red blood cells
or other blood products is required.  The Company is also developing a specially
formulated  hypothermic  blood  substitute  solution  that  would have a similar
function  and  would be used for the  replacement  of very  large  volumes  of a
patient's blood during cardiac  surgery,  neurosurgery  and other surgeries that
involve lowering the patient's body temperature to hypothermic levels.

         The Company's first product,  Hextend(R), is a physiologically balanced
blood plasma volume expander, for the treatment of hypovolemia. Hypovolemia is a
condition  often  associated  with blood  loss  during  surgery or from  injury.
Hextend maintains circulatory system fluid volume and oncotic pressure and keeps
vital organs perfused during surgery.  Hextend, approved for large-volume use in
major  surgery,   is  the  only  blood  plasma  volume  expander  that  contains
hetastarch,  buffer,  multiple electrolytes and glucose.  Hextend is designed to
compete  with and to replace  flawed  older  products  such as albumin and other
colloid  solutions,  as well as  crystalloid  solutions,  that have been used to
maintain  fluid  volume  and blood  pressure  during  surgery.  Hextend  is also
completely sterile to avoid risk of infection.  Health insurance  reimbursements
and HMO coverage now include the cost of Hextend used in surgical procedures.

         Hextend is being sold in the United States by Abbott Laboratories under
an exclusive license from the Company. Abbott also has the right to sell Hextend
in Canada,  where an application for marketing approval is pending.  BioTime has
retained all rights to  manufacture,  sell or license Hextend and other products
in  all  other  countries.  Abbott  also  has a  right  to  obtain  licenses  to
manufacture  and  sell  other  BioTime   products.   See  "Licensing"  for  more
information about the license granted to Abbott Laboratories.

          Because  Hextend is a surgical  product,  sales will be  determined by
anesthesiologists, surgeons and hospital pharmacists. Abbott's marketing program
for  Hextend  includes,  in  addition  to  advertisements  in medical  journals,
educational presentations for its sales force and physicians

                                        2






explaining the various  benefits of using  Hextend.  Abbott is also working with
hospitals to have Hextend approved for use and added to hospital formularies.

         As part of the marketing program, Abbott and the Company will finance a
number of limited  medical  studies  comparing  outcomes of  patients  receiving
Hextend and patients receiving other products during surgery.  It will take time
to complete  these  studies and publish the results.  The outcome of the planned
medical  studies  and timing of the  publication  of the  results  could have an
effect on the growth of demand for Hextend and sales by Abbott.

         The  Company is also  developing  two other  blood  volume  replacement
products,  PentaLyte,(R)  and  HetaCool,TM  that,  like  Hextend,(R)  have  been
formulated to maintain the patient's tissue and organ function by sustaining the
patient's  fluid  volume  and   physiological   balance.   Various  colloid  and
crystalloid   products  are  being  marketed  by  other  companies  for  use  in
maintaining  patient  fluid  volume in surgery and trauma  care,  but the use of
those solutions can contribute to patient morbidity,  including  conditions such
as hypovolemia,  edema, impaired blood clotting, acidosis, and other biochemical
imbalances.  Hextend,  PentaLyte,  and HetaCool  contain  constituents  that may
prevent or reduce the  physiological  imbalances  that can cause those problems.
The  Company's  products do not contain  albumin.  Albumin  produced  from human
plasma is also  currently  used as a plasma  expander,  but it is expensive  and
subject  to  supply  shortages.  Additionally,  a  recent  FDA  ("Food  and Drug
Administration")   warning   has   cautioned   physicians   about  the  risk  of
administering  albumin to seriously ill patients.  A recently published study of
hemodilution in laboratory animals supports claims that hetastarch products like
Hextend and PentaLyte permit blood to clot at least as well as albumin. This new
study found that when used in vitro and in large  volumes  Hextend and PentaLyte
out performed albumin and other plasma volume expanders in blood clotting tests.

         Based upon the results of its clinical studies and laboratory research,
the Company has determined that in many emergency care and surgical applications
it is not  necessary  for a plasma  volume  expander to include  special  oxygen
carrying  molecules  to  replace  red blood  cells.  Therefore,  the  Company is
developing  formulations  that do not use costly and  potentially  toxic  oxygen
carrying molecules such as synthetic hemoglobin and perfluorocarbons.

         The  Company  intends  to  enter  global  markets   through   licensing
agreements  with overseas  pharmaceutical  companies.  By licensing its products
abroad,  the  Company  will  avoid the  capital  costs and  delays  inherent  in
acquiring or establishing its own  pharmaceutical  manufacturing  facilities and
establishing an international marketing organization. A number of pharmaceutical
companies  in Europe,  Asia and other  markets  around the world have  expressed
their  interest in obtaining  licenses to  manufacture  and market the Company's
products.  The Company is continuing to meet with  representatives of interested
companies and is approaching  agreement to license its products in certain parts
of the world.

         The Company is also pursuing a global clinical trial strategy, the goal
of which is to permit the Company to obtain regulatory approval for its products
as quickly and economically as practicable. For example, the United States Phase
III clinical trials of Hextend involved 120 patients

                                        3






and were completed in less than 12 months. Although regulatory requirements vary
from  country to  country,  the  Company  may be able to file  applications  for
foreign regulatory approval of its products based upon the results of the United
States clinical trials.  The Company's  application to market Hextend in Canada,
based upon its United States  clinical  trials,  has been found  acceptable  for
review as a New Drug Submission by the Canadian Health  Protection Branch (HPB),
and  the  Company  is now  awaiting  completion  of the  HPB's  review  of  that
application. Regulatory approvals for countries that are members of the European
Union may be  obtained  through a mutual  recognition  process.  The Company has
determined  that several member  nations would accept an application  based upon
the United States clinical  trials.  If approvals based upon those trials can be
obtained in the requisite  number of member  nations,  then the Company would be
permitted to market Hextend in all 16 member nations.

         In order to commence  clinical  trials for  regulatory  approval of new
products, such as PentaLyte and HetaCool, or new therapeutic uses of Hextend, it
will  be  necessary  for  the  Company  to  prepare  and  file  with  the FDA an
Investigational  New Drug  Application  ("IND")  or an  amendment  to expand the
present IND for  additional  Hextend  studies.  Filings with foreign  regulatory
agencies will be required to commence clinical trials overseas.

          BioTime recently  completed a clinical study at the University College
of London Hospitals involving elderly patients undergoing major elective surgery
in which large quantities of blood were often lost. In this study, patients were
treated with BioTime's  Hextend plasma volume expander and other fluids designed
to replace lost blood volume.  Preliminary  analysis  indicated that the Hextend
treated group showed significantly better preservation of blood pH, chloride and
calcium  levels,  compared  to  those  treated  with 6%  hetastarch  in  saline.
Hyperchloremic  acidemia  was  found in those  surgical  patients  treated  with
saline-based  surgical fluids, but not in those treated with Hextend.  The study
investigators  have prepared  abstracts of the results and have submitted a peer
review journal article detailing their findings.

         BioTime is also planning  clinical  studies of other products.  BioTime
has filed an IND for PentaLyte and is waiting for the FDA to complete its review
before a clinical study can begin. BioTime's present plan is to seek approval of
PentaLyte  as a  cardio-pulmonary  by-pass  pump  priming  solution  and for the
treatment  of  hypovolemia.  BioTime  is  preparing  a  protocol  for the use of
HetaCool (a modified formulation of Hextend) to replace a portion of a patient's
blood  volume at  temperatures  ranging  from 12o to 20o C. When the protocol is
completed and approved by physicians  who may  participate  in clinical  trials,
BioTime  plans to submit  the  protocol  to the FDA as part of an  amendment  to
BioTime's  Hextend IND. The amendment will seek  permission to conduct  clinical
trials of HetaCool as a blood  volume  replacement  solution in low  temperature
surgeries  for the  correction  of  aneurysms,  and for the use of  Hextend as a
priming  solution for  cardio-pulmonary  bypass  pumps.  Aneurysms  are vascular
disorders  that  are  often  found  in  patients  suffering  from  aging-related
cardiovascular disease.

         After  surgical  procedures  have  been  performed  in the 12o to 20o C
temperature range, BioTime plans to conduct additional clinical studies in which
HetaCool will be used to replace all

                                        4






of the  patient's  circulating  blood volume at  near-freezing  temperatures  in
aneurysm  surgery.  BioTime has developed  techniques  to permit  cardiovascular
surgery while the patient is maintained in a state of circulatory arrest at near
freezing temperatures.  These techniques have been successfully used to maintain
dogs and pigs in a state of circulatory arrest for periods ranging from one hour
to more than two hours, and hamsters for more than six hours.

         The cost of preparing regulatory filings and conducting clinical trials
is not presently  determinable,  but could be substantial.  It will be necessary
for the Company to obtain  additional  funds in order to complete  any  clinical
trials  that may  begin for its new  products  or for new uses of  Hextend.  The
Company  plans to negotiate  product  licensing and  marketing  agreements  that
require  overseas  licensees  and  distributors  of  Company  products  to  bear
regulatory approval and clinical trial costs for their territories.

         In addition to developing clinical trial programs, the Company plans to
continue to provide  funding  for its  laboratory  testing  programs at selected
universities,  medical  schools  and  hospitals  for the  purpose of  developing
additional uses of Hextend, PentaLyte, HetaCool, and other new products, but the
amount of research that will be conducted at those institutions will depend upon
the Company's  financial status.  Because the Company's research and development
expenses, clinical trial expenses, and production and marketing expenses will be
charged against earnings for financial  reporting  purposes,  management expects
that losses from  operations  will  continue to be incurred for the  foreseeable
future.

         The Company was incorporated  under the laws of the State of California
on November 30, 1990.  The Company's  principal  office is located at 935 Pardee
Street, Berkeley, California 94710. Its telephone number at such office is (510)
845-9535.

         Hextend(R) and PentaLyte(R) are registered  trademarks,  and HetaCoolTM
is a trademark, of BioTime, Inc.

                                        5






Products for Surgery, Plasma Replacement and Emergency Care

The Market for Plasma Volume Expanders

         The  Company  is  developing  Hextend,  PentaLyte,  HetaCool  and other
synthetic plasma expander solutions to treat acute blood loss that occurs during
many  kinds of  surgery.  The  solutions  could also be used by  emergency  room
physicians or by  paramedics  to treat acute blood loss in trauma  victims being
transported to the hospital.

         Approximately 10,000,000 surgeries take place in the United States each
year, and blood  transfusions are required in  approximately  2,500,000 of those
cases.  Transfusions are also required to treat patients  suffering severe blood
loss due to traumatic injury. Many more surgical and trauma cases do not require
blood  transfusions  but do  involve  significant  bleeding  that can  place the
patient  at risk of  suffering  from  shock  caused by the loss of fluid  volume
(hypovolemia) and physiological balance. Whole blood, packed red cells, or blood
plasma  generally  cannot be administered to a patient until the patient's blood
serum has been typed and sufficient  units of compatible  blood or red cells can
be  located.  Periodic  shortages  of  supply  of  donated  human  blood are not
uncommon,  and rare blood types are often difficult to locate.  The use of human
blood  products  also poses the risk of  exposing  the  patient  to blood  borne
diseases such as AIDS and hepatitis.

         Due to the risks and cost of using  human blood  products,  even when a
sufficient supply of compatible blood is available, physicians treating patients
suffering  blood loss are  generally  not permitted to transfuse red blood cells
until the patient's  level of red blood cells has fallen to a level known as the
"transfusion trigger." During the course of surgery, while blood volume is being
lost, the patient is infused with plasma volume  expanders to maintain  adequate
blood  circulation.  During  the  surgical  procedure,  red blood  cells are not
replaced until the patient has lost  approximately 45% to 50% of their red blood
cells,  thus reaching the transfusion  trigger at which point the transfusion of
red blood cells may be required.  After the transfusion of red blood cells,  the
patient may continue to  experience  blood  volume loss,  which will be replaced
with  plasma  volume  expanders.  Even in those  patients  who do not  require a
transfusion, physicians routinely administer plasma volume expanders to maintain
sufficient  fluid  volume to permit the  available  red blood cells to circulate
throughout the body and to maintain the patient's physiological balance.

         Several  units of fluid  replacement  products  are often  administered
during surgery. The number of units will vary depending upon the amount of blood
loss and the kind of plasma volume expander  administered.  Crystalloid products
must be used in larger volumes than colloid products such as Hextend.

         Other plasma volume expanders have certain draw backs. The use of those
products can  contribute  to patient  morbidity,  including  conditions  such as
hypovolemia,  edema,  impaired blood clotting,  acidosis,  and other biochemical
imbalances. In contrast,  Hextend,  PentaLyte, and HetaCool contain constituents
that may prevent or reduce the physiological  imbalances that cause the problems
associated  with the use of other  plasma  volume  expanders,  and  because  the
Company's products are

                                        6






synthetic they can be manufactured in large volumes. Albumin produced from human
plasma is expensive and subject to supply shortages.  Additionally, a recent FDA
warning has  cautioned  physicians  about the risk of  administering  albumin to
seriously ill patients. A recently published study of hemodilution in laboratory
animals  contradicts claims that hetastarch  products like Hextend and PentaLyte
may impair the ability of blood to clot to a greater  degree than albumin.  This
new  study  found  that  when used in vitro  and in large  volumes  Hextend  and
PentaLyte  out  performed  albumin and other  plasma  volume  expanders in blood
clotting tests.

The Market for Products for Hypothermic Surgery

         Approximately  400,000  coronary  bypass and other open heart surgeries
are performed in the United States annually,  and approximately  18,000 aneurysm
surgeries and 4,000 arterio-venous  malformation surgeries were performed in the
United  States  during  1989.   Those   procedures  often  require  the  use  of
cardio-pulmonary  bypass  equipment to do the work of the heart and lungs during
the surgery. During open heart surgery and surgical procedures for the treatment
of certain  cardiovascular  conditions such as large  aneurysms,  cardiovascular
abnormalities and damaged blood vessels in the brain,  surgeons must temporarily
interrupt the flow of blood through the body.  Interruption of blood flow can be
maintained  only for short periods of time at normal body  temperatures  because
many  critical  organs,  particularly  the  brain,  are  quickly  damaged by the
resultant loss of oxygen. As a result, certain surgical procedures are performed
at low temperatures  because lower body temperature helps to minimize the chance
of damage to the  patient's  organs by reducing the  patient's  metabolic  rate,
thereby  decreasing the patient's  needs during surgery for oxygen and nutrients
which normally flow through the blood.

         Current  technology  limits  the degree to which  surgeons  can lower a
patient's  temperature and the amount of time the patient can be maintained at a
low body  temperature  because  blood,  even when diluted,  cannot be circulated
through  the body at  near-freezing  temperatures.  As a result,  surgeons  face
severe time constraints in performing surgical  procedures  requiring blood flow
interruption,  and those  time  limitations  prevent  surgeons  from  correcting
certain cardiovascular abnormalities.

Hextend, PentaLyte and HetaCool

         The Company's first three blood volume replacement  products,  Hextend,
PentaLyte,  and HetaCool,  have been formulated to maintain the patient's tissue
and organ  function by sustaining the patient's  fluid volume and  physiological
balance.  Hextend,  PentaLyte,  and  HetaCool,  are  composed of a  hydroxyethyl
starch,  electrolytes,  sugar  and a buffer  in an  aqueous  base.  Hextend  and
HetaCool use a high molecular weight hydroxyethyl  starch  (hetastarch)  whereas
PentaLyte uses a lower molecular weight hydroxyethyl starch  (pentastarch).  The
hetastarch is retained in the blood longer than the pentastarch,  which may make
Hextend and  HetaCool  the  products  of choice  when a larger  volume of plasma
expander or blood replacement  solution for low temperature surgery is needed or
where the patient's  ability to restore his own blood  proteins after surgery is
compromised.  PentaLyte,  with  pentastarch,  would be eliminated from the blood
faster than Hextend and HetaCool

                                        7






and might be used when less  plasma  expander  is needed or where the patient is
more capable of quickly  restoring  lost blood  proteins.  The Company  recently
began  testing  HexaLyte,  a new  plasma  volume  expander  that  contains a low
molecular weight  hydroxyethyl starch and that would be eliminated from the body
more rapidly than Hextend and HetaCool, but not as rapidly as PentaLyte. BioTime
believes  that by testing and  bringing  these  products  to the market,  it can
increase its market share by providing the medical  community  with solutions to
match patients' needs.

         Certain test results indicate that Hextend and PentaLyte may prove more
effective at  maintaining  blood  calcium  levels than the leading  domestically
available  plasma extender when used to replace large volumes of blood.  Calcium
can be a significant factor in regulating blood clotting and cardiac function.

         BioTime has not  attempted to synthesize  potentially  toxic and costly
oxygen  carrying  molecules such as hemoglobin  because the loss of fluid volume
and  physiological  balance may  contribute  as much to shock as the loss of the
oxygen  carrying  component  of the  blood.  Surgical  and trauma  patients  are
routinely given  supplemental  oxygen and retain a substantial  portion of their
own red blood  cells.  Whole blood or packed red blood cells are  generally  not
transfused  during  surgery or in trauma care until  several  units of plasma or
plasma volume expanders have been administered and the patient's  hematocrit has
fallen  to the  transfusion  trigger.  Therefore,  the lack of  oxygen  carrying
molecules   in  the   Company's   solutions   should  not  pose  a   significant
contraindication to use.

         Hextend  is  BioTime's  proprietary  hetastarch-based  synthetic  blood
plasma volume expander,  designed especially to treat hypovolemia in surgery and
trauma care where patients experience a large amount of blood loss. An important
goal of the Hextend  development  program  was to produce a product  that can be
used in  multi-liter  volumes to treat  patients who have lost a large volume of
blood  during  surgery or as a result of injury.  The safety  related  secondary
endpoints   targeted  in  the  U.S.  clinical  study  included  those  involving
coagulation.  The Company  believes  that the low  incidence  of adverse  events
related to blood clotting in the Hextend patients  demonstrates that Hextend may
be safely used in large amounts. An average of 1.6 liters of Hextend was used in
the  clinical  trials,  with an average of two liters for  patients who received
transfused blood products.  The use of Hextend in volumes  exceeding five liters
has been  reported  in a number of high blood loss cases  since  Hextend  became
available for use in the United States.

         BioTime plans to test the use of Hextend as a  cardio-pulmonary  bypass
circuit priming solution. In order to perform heart surgery, the patient's heart
must be stopped and a mechanical  apparatus is used to oxygenate  and  circulate
the blood. The  cardio-pulmonary  bypass  apparatus  requires a blood compatible
fluid such as Hextend to commence  and  maintain  the process of  diverting  the
patient's blood from the heart and lungs to the mechanical oxygenator and pump.

         BioTime   believes  that  Hextend  will  maintain  blood  pressure  and
physiological balance better than the solutions presently used as bypass priming
solutions.  Approximately  2 liters  of  Hextend  would be used for each  bypass
operation. Based upon the number of coronary bypass operations

                                        8






performed, the potential market for Hextend as a bypass circuit priming solution
in the United States would be about 800,000 liters annually.

         PentaLyte is BioTime's proprietary  pentastarch-based  synthetic plasma
expander,  designed  especially for use when a faster  elimination of the starch
component  is desired  and  acceptable.  Although  Hextend  can be used in these
cases,  some  physicians  appear to prefer a solution which could be metabolized
faster and excreted earlier when the longer term protection  provided by Hextend
is  not  required.  PentaLyte  combines  the  physiologically  balanced  Hextend
formulation  with  pentastarch  that has a lower molecular  weight and degree of
substitution  than the hetastarch used in Hextend.  BioTime has filed an IND for
PentaLyte  and is waiting for the FDA to complete  its review  before a clinical
study can begin.  BioTime's  present plan is to seek  approval of PentaLyte as a
cardio-pulmonary  by-pass  pump  priming  solution  and  for  the  treatment  of
hypovolemia.

         HetaCool is a modified formulation of Hextend. HetaCool is specifically
designed for use at low  temperatures.  Surgeons are already  using a variety of
other solutions to carry out certain limited  procedures  involving shorter term
(up to nearly  one hour)  arrest of brain  and heart  function  at  temperatures
between 15o and 25o C. However, BioTime is not aware of any fluid currently used
in medical practice or any medically-approved protocol allowing operations which
can completely replace all of a patient's blood at temperatures close to the ice
point.  The  Company  believes  that  very low  temperature  bloodless  surgical
techniques could be developed for open heart and minimally invasive closed chest
cardiovascular  surgeries,  and  removal of tumors from the brain,  head,  neck,
heart, and other areas.

         The Company is in the process of  preparing an amendment to its Hextend
IND  application  to conduct  preliminary  clinical  trials to use HetaCool as a
cardio-pulmonary   bypass   circuit   priming   solution   in  low   temperature
cardio-vascular  surgery.  Those  preliminary  clinical trials will be a step to
preparing an amended IND  application to conduct  clinical trials using HetaCool
as a solution to replace  all of a patient's  circulating  blood  volume  during
profound  hypothermic  (carried  out at near-  freezing  temperatures)  surgical
procedures. The experimental protocol for the planned blood replacement clinical
trial is being tested on animal subjects.  HetaCool would be introduced into the
patient's body during the cooling  process.  Once the patient's body temperature
is nearly ice cold, and heart and brain function are temporarily  arrested,  the
surgeon  would  perform  the  operation.  During the  surgery,  HetaCool  may be
circulated  throughout  the body in place of blood,  or the  circulation  may be
arrested  for a  period  of time if an  interruption  of  fluid  circulation  is
required. Upon completion of the surgery, the patient would be slowly warmed and
blood would be transfused.

         Cardiac surgeons are working to develop innovative procedures to repair
damaged  coronary  arteries  and heart  valves.  If  optically  guided  surgical
instruments  can be  inserted  into the heart  through  blood  vessels  or small
incisions,  there may be no need to open the  patient's  chest  cavity.  BioTime
believes that HetaCool may be useful in these  minimally  invasive  closed chest
cardiac  procedures  because the solution is transparent  and if it were used to
completely  replace blood at low  temperatures  it would permit  surgeons to use
their optically guided instruments inside the heart or

                                        9






blood  vessels  without  having  their  view  obstructed  by  blood.  The use of
BioTime's solutions may also allow better control over stopping and starting the
heart, as well as extending the time period of such  surgeries.  BioTime intends
to conduct a series of  laboratory  studies  using  animal  subjects to test the
utility of HetaCool as a low temperature blood substitute in such procedures.

         HetaCool  has been  used to  completely  replace  the  blood  volume of
hamsters,  dogs, pigs, and baboons at temperatures approaching freezing. Many of
these animal subjects survived long term after  hypothermic  blood  substitution
with HetaCool.  In these  laboratory  tests,  the animals' blood was replaced by
HetaCool  and they were  chilled  for one to more than four hours with deep body
temperatures between 1oC and 10oC.

         BioTime is developing a new formulation that has allowed the revival of
hamsters after as long as 6.5 hours of  hypothermic  blood  substitution  during
which time the animals' heartbeat and circulation were stopped.

Organ Transplant Products

The Market for Organ Preservation Solutions

         Organ  transplant  surgery is a growing field.  Each year in the United
States, approximately 5,000 donors donate organs, and approximately 5,000 people
donate skin, bone and other tissues.

 As more surgeons have gained the necessary  expertise and surgical methods have
been refined,  the number of transplant  procedures  has  increased,  as has the
percentage  of  successful  transplants.  Organ  transplant  surgeons  and their
patients face two major obstacles,  namely the shortage of available organs from
donors,  and the limited amount of time that a transplantable  organ can be kept
viable  between  the  time it is  harvested  from the  donor  and the time it is
transplanted into the recipient.

         The scarcity of  transplantable  organs makes them too precious to lose
and increases the importance of effective preservation  technology and products.
Current organ removal and preservation  technology  generally  requires multiple
preservation  solutions to remove and preserve  effectively  different groups of
organs.  The  removal  of one organ can impair the  viability  of other  organs.
Available  technology  does not permit  surgeons  to keep the  remaining  organs
viable within the donor's body for a  significant  time after the first organ is
removed.  Currently,  an organ  available for  transplant is flushed with an ice
cold solution  during the removal  process to deactivate  the organ and preserve
its tissues, and then the organ is transported on ice to the donee. The ice cold
solutions  currently used,  together with  transportation on ice, keep the organ
healthy for only a short  period of time.  For  example,  the  storage  time for
hearts is limited  to  approximately  six hours.  Because of the short time span
available for removal and transplant of an organ, potential organ donees may not
receive the needed organs.

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         BioTime  is  seeking  to address  this  problem  by  developing  a more
effective organ  preservation  solution that will permit surgeons to harvest all
transplantable  organs from a single donor. The Company believes that preserving
the viability of all transplantable  organs and tissues  simultaneously,  at low
temperatures,  would  extend by several  hours the time span in which the organs
can be preserved prior to transplant.

         Using HetaCool for Multi-Organ Preservation.  The Company is seeking to
develop HetaCool for use as a single solution that can  simultaneously  preserve
all of a single donor's  organs.  When used as an organ  preservation  solution,
HetaCool  would be  perfused  into the  donor's  body while the body is chilled,
thereby eliminating an undesirable condition called "warm ischemia," caused when
an organ is warm while its blood supply is  interrupted.  The use of HetaCool in
conjunction  with the  chilling of the body should help to slow down the process
of organ  deterioration  by a number of hours so that a surgeon  can  remove all
organs for donation and  transplant.  The Company's  current  estimates are that
each such preservation procedure could require as much as 50 liters of HetaCool.

         The Company believes that the ability to replace an animal's blood with
the  Company's  HetaCool  solution,  to  maintain  the  animal at near  freezing
temperatures  for several hours, and then revive the animal,  would  demonstrate
that the solution could be used for multi-organ preservation. Company scientists
have revived animals after more than six hours of cold  blood-substitution,  and
have observed heart function in animals  maintained  cold and  blood-substituted
for  more  than  eight  hours.  An  objective  of  the  Company's  research  and
development  program is to extend the time span in which animal  subjects can be
maintained  in a cold,  blood-substituted  state  before  revival  or removal of
organs  for  transplant  purposes.  Organ  transplant  procedures  using  animal
subjects  could then be  conducted  to test the  effectiveness  of Hextend as an
organ preservative.

Long-term Tissue and Organ Banking

         The  development  of  marketable  products  and  technologies  for  the
preservation  of tissues and vital  organs for weeks and months is a  long-range
goal of the Company's  research and  development  plan. To permit such long-term
organ  banking the Company is attempting  to develop  products and  technologies
that can  protect  tissues  and organs  from the damage  that  occurs when human
tissues are subjected to subfreezing temperatures.

         HetaFreeze is one of a family of BioTime's  freeze-protective solutions
which may ultimately allow the extension of time during which organs and tissues
can be  stored  for  future  transplant  or  surgical  grafting.  In  laboratory
experiments, BioTime's proprietary freeze-protective compounds have already been
used to preserve skin when used as a whole animal perfusate.  Silver dollar size
full  thickness  shaved skin  samples have been removed  after  saturation  with
HetaFreeze  solution,  frozen at liquid  nitrogen  temperatures  and  stored for
periods  ranging  from days to weeks.  The grafts were then warmed and sewn onto
the backs of host animals. Many of these grafts survived.

                                       11






         In other  laboratory  experiments,  BioTime  scientists have shown that
animals can be revived to consciousness  after partial freezing with their blood
replaced by  HetaFreeze.  While this  technology  has not developed to an extent
that allows long term survival of the laboratory  subjects,  and their organs, a
better understanding of the effects of partial freezing could allow for extended
preservation times for vital organs, skin and blood vessels.

Other Potential Uses of BioTime Solutions

         Isolated regional perfusion of anti-cancer drugs has been used to treat
melanoma of the limbs, and inoperable  tumors of the liver. The Company believes
that  employing  such  a  procedure  while  the  patient  is  kept  in  ice-cold
blood-substitution  may  allow  high  doses  of  toxic  anti-cancer  drugs to be
directed at  inoperable  tumors  within  vital  organs.  Keeping the rest of the
patient  in a  cold,  blood  substituted  state  may  reduce  or  eliminate  the
circulation of the toxic drugs to healthy tissues.

         BioTime considers such surgical techniques to be a longer range goal of
its research and development  program for hypothermic  surgery products.  Use of
this  complex  technology  in the  practice  of  oncology  can occur  only after
ice-cold  blood-substitution  has advanced to an appropriate level of safety and
effectiveness.

Research and Development Strategy

         From  inception  through  December  31,  1999,  the  Company  has spent
$16,582,509  on research  and  development.  The  greatest  portion of BioTime's
research  and  development  efforts  have been  devoted  to the  development  of
Hextend,  PentaLyte and HetaCool for conventional  surgery,  emergency care, low
temperature  surgery,  and  multi-organ  preservation.  A lesser  portion of the
Company's  research and  development  efforts  have been  devoted to  developing
solutions  and  protocols  for  storing   organs  and  tissues  at   subfreezing
temperatures.  In the future the Company may explore other  applications  of its
products and technologies,  including cancer chemotherapy. As the first products
achieve  market  entry,  more  effort will be expended to bring the next tier of
products to maturity.

         One major focus of the Company's  research and  development  effort has
been on products and  technology to extend the time animals can be kept cold and
blood-substituted,  and then revived without  physical  impairment.  An integral
part of that effort has been the  development  of techniques  and  procedures or
"protocols" for use of the Company's products.  A substantial amount of data has
been accumulated through animal tests, including the proper surgical techniques,
drugs and  anesthetics,  the temperatures and pressures at which blood and blood
replacement  solutions  should be removed,  restored  and  circulated,  solution
volume,  the temperature range, and times, for maintaining  circulatory  arrest,
and the rate at which the subject should be rewarmed.

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         Experiments  intended  to  test  the  efficacy  of  the  Company's  low
temperature blood replacement  solutions and protocols for surgical applications
involve  replacing the animal's blood with the Company's  solution,  maintaining
the  animal in a cold  blood-substituted  state  for a period of time,  and then
attempting  to revive  the  animal.  Experiments  for  multi-organ  preservation
involve the maintenance of the animal subjects at cold  temperatures  for longer
periods of time than would be required for many surgical applications,  followed
by  transplant  procedures to test the viability of one or more of the subject's
vital organs.

         The Company is conducting  experiments at hospital, and medical school,
and university research  facilities.  These collaborative  research programs are
testing solutions and protocols developed in the Company's  laboratories and, in
some cases,  comparing the efficacy of the Company's  products with commercially
available FDA approved products  manufactured by other companies.  Collaborative
gerontological  research is being  conducting at the University of California at
Berkeley.  The Company  intends to continue to foster  relations  with  research
hospitals  and  medical  schools  for the  purpose of  conducting  collaborative
research  projects  because it believes that such  projects  will  introduce the
Company's  potential  products to members of the medical  profession and provide
the  Company  with  objective  product  evaluations  from  independent  research
physicians and surgeons.

Licensing

         On April 23,  1997,  the  Company  and  Abbott  entered  into a License
Agreement  under which the  Company  granted to Abbott an  exclusive  license to
manufacture and sell Hextend in the United States and Canada for all therapeutic
uses other than those  involving  hypothermic  surgery where the patient's  body
temperature is lower than  12(degree)C  ("Hypothermic  Use"),  or replacement of
substantially  all  of  a  patient's   circulating  blood  volume  ("Total  Body
Washout").  The Company has retained all rights to manufacture,  sell or license
Hextend and other products in all other countries.

         Under the License Agreement, Abbott has agreed to pay the Company up to
$40,000,000  in license fees, of which  $2,500,000 has been paid to date for the
grant  of  the  license  and  the  achievement  of  certain  milestones.  Up  to
$37,500,000  of  additional  license fees will be payable  based upon annual net
sales of  Hextend,  at the rate of 10% of annual  net sales if annual  net sales
exceed  $30,000,000  or 5% if  annual  net sales are  between  $15,000,0000  and
$30,000,000.  Abbott's obligation to pay licensing fees on sales of Hextend will
expire on the earlier of January 1, 2007 or, on a country by country basis, when
all patents  protecting  Hextend in the  applicable  country expire or any third
party  obtains  certain  regulatory  approvals  to market a  generic  equivalent
product in that country.

         In addition to the license fees,  Abbott will pay the Company a royalty
on total  annual  net  sales of  Hextend.  The  royalty  rate will be 5% plus an
additional .22% for each $1,000,000 of annual net sales, up to a maximum royalty
rate of 36%. The royalty rate for each year will be applied on a total net sales
basis so that once the highest royalty rate for a year is determined,  that rate
will be

                                       13






paid with  respect  to all  sales  for that  year.  Abbott's  obligation  to pay
royalties  on sales of Hextend  will expire in the United  States or Canada when
all patents  protecting  Hextend in the applicable  country expire and any third
party  obtains  certain  regulatory  approvals  to market a  generic  equivalent
product in that country.

         Abbott has agreed  that the  Company  may  convert  Abbott's  exclusive
license to a non-  exclusive  license or may terminate  the license  outright if
certain  minimum  sales and royalty  payments are not met. In order to terminate
the license  outright,  the  Company  would pay a  termination  fee in an amount
ranging from the  milestone  payments made by Abbott to an amount equal to three
times prior year net sales,  depending upon when  termination  occurs.  Abbott's
exclusive license also may terminate, without the payment of termination fees by
the Company, if Abbott fails to market Hextend. Abbott has agreed to manufacture
Hextend for sale by the Company in the event that Abbott's  exclusive license is
terminated in either case.

         Abbott has a right to acquire  additional  licenses to manufacture  and
sell the  Company's  other  plasma  expander  products in the United  States and
Canada. If Abbott exercises its right to acquire a license to sell such products
for uses other than  Hypothermic  Surgery or Total Body Washout,  in addition to
paying  royalties,  Abbott will be obligated to pay a license fee based upon the
Company's direct and indirect research, development and other costs allocable to
the new  product.  If Abbott  desires  to  acquire a license  to sell any of the
Company's  products for use in  Hypothermic  Surgery or Total Body Washout,  the
license  fees and other  terms of the  license  will be subject  to  negotiation
between the  parties.  For the purpose of  determining  the  applicable  royalty
rates, net sales of any such new products  licensed by Abbott will be aggregated
with sales of Hextend.  If Abbott does not  exercise  its right to acquire a new
product license,  the Company may manufacture and sell the product itself or may
license others to do so.

         In order to  preserve  its rights to obtain an  exclusive  license  for
PentaLyte under the License  Agreement,  Abbott notified the Company that Abbott
will supply  BioTime with batches of PentaLyte,  characterization  and stability
studies,  and other  regulatory  support  needed for  BioTime to file an IND and
conduct clinical studies.

         The foregoing  description  of the License  Agreement is a summary only
and is  qualified  in all  respects by reference to the full text of the License
Agreement.

         The Company is also  discussing and negotiating  prospective  licensing
arrangements  with  other  pharmaceutical  companies,  some of  which  have  the
capacity to produce  and market the  Company's  products  in various  countries.
Representatives of the Company and Nihon Pharmaceutical  Company, Ltd. ("Nihon")
have been  discussing  the  development  of BioTime  products  for the  Japanese
market,  and the  development  of a clinical  trial  program to obtain  Japanese
regulatory approval.  Nihon and the Company previously signed a letter of intent
to negotiate a licensing agreement to manufacture and market BioTime products in
Japan.  Nihon is a subsidiary of Takeda  Chemical  Industries,  Japan's  largest
pharmaceutical  manufacturer.  In licensing  arrangements that include marketing
rights, the participating pharmaceutical company would be

                                       14






entitled to retain a large  portion of the revenues  from sales to end users and
would pay the  Company a royalty on net sales.  There is no  assurance  that any
such additional arrangements can be made.

Manufacturing

Facilities Required

         The Company has  sufficient  equipment,  space and personnel  needed to
synthesize the quantities of its products used in its research activity, but the
Company does not have  facilities  to  manufacture  the  solution in  commercial
quantities,  or under "good  manufacturing  practices"  required by the FDA. Any
products that are used in clinical trials for FDA approval, or that are approved
by the FDA for  marketing,  will  have to be  manufactured  according  to  "good
manufacturing  practices"  at a  facility  that has passed  FDA  inspection.  In
addition, any products that are approved by the FDA will have to be manufactured
in  commercial  quantities,  and with  sufficient  stability  to  withstand  the
distribution  process,  and in compliance with such federal and state regulatory
requirements as may be applicable. The active ingredients and component parts of
the products  must be either USP or themselves  manufactured  according to "good
manufacturing practices."

         Abbott,  which manufactures  Hextend for the North American market, and
NPBI International,  BV, a Netherlands  company ("NPBI"),  that has manufactured
lots of Hextend for the Company's use in seeking regulatory  approval in Europe,
both have the  facilities to manufacture  Hextend and other Company  products in
commercial quantities.  If Abbott chooses not to obtain a license to manufacture
and market another BioTime product,  and if NPBI declines to manufacture BioTime
products on a commercial basis, the Company will need to enter into licensing or
product  manufacturing  arrangements  with  another  established  pharmaceutical
company.

         Acquiring  a   manufacturing   facility   would   involve   significant
expenditure  of time and money for  design  and  construction  of the  facility,
purchasing  equipment,  hiring and training a production  staff,  purchasing raw
material and attaining an efficient  level of  production.  Although the Company
has not determined the cost of constructing  production facilities that meet FDA
requirements,  it  expects  that the cost  would  be  substantial,  and that the
Company would need to raise  additional  capital in the future for that purpose.
There can be no  assurance  that the Company  will be able to obtain the capital
required for the acquisition of production  facilities.  To avoid the incurrence
of those  expenses and delays,  the Company is seeking  contract  and  licensing
arrangements with established pharmaceutical companies for the production of the
Company's products, but there can be no assurance that satisfactory arrangements
will be made.

Raw Materials

Although most  ingredients  in the products  being  developed by the Company are
readily  obtainable  from  multiple  sources,  the  Company  knows of only a few
manufacturers of the  hydroxyethyl  starches that serve as the drug substance in
Hextend, PentaLyte and HetaCool. Abbott

                                       15






presently  has a source of supply of the  hydroxyethyl  starch  used in Hextend,
PentaLyte and HetaCool,  and has agreed to maintain a supply  sufficient to meet
market  demand  for  Hextend  in the  United  States  and  Canada.  In  order to
manufacture  its  products  for  overseas  markets,  or products  not  presently
licensed to Abbott for the United States and Canadian markets,  the Company or a
licensee would have to secure a supply or production  agreement with one or more
of the known  hydroxyethyl  starch  manufacturers.  The Company believes that it
will be able to  obtain a  sufficient  supply  of  starch  for its  needs in the
foreseeable  future,  although it does not have a supply  agreement in place. If
for any reason a sufficient supply of hydroxyethyl starch could not be obtained,
the Company or a licensee would have to acquire a manufacturing facility and the
technology to produce the hydroxyethyl  starch  according to good  manufacturing
practices.  The Company would have to raise additional capital to participate in
the  development  and  acquisition  of the necessary  production  technology and
facilities.

         If  arrangements  cannot be made for a source of supply of hydroxyethyl
starch,  the Company would have to reformulate  its solutions to use one or more
other  starches that are more readily  available.  In order to  reformulate  its
products,  the Company would have to perform new laboratory testing to determine
whether the alternative starches could be used in a safe and effective synthetic
plasma volume expander,  low temperature blood substitute or organ  preservation
solution. If needed, such testing would be costly to conduct and would delay the
Company's product development  program,  and there is no certainty that any such
testing would  demonstrate  that an alternative  ingredient,  even if chemically
similar to the one currently used, would be as safe or effective.

Marketing

         Because Hextend is a surgical  product,  sales efforts must be directed
to anesthesiologists,  surgeons,  intensive care and trauma care physicians, and
hospital pharmacists. In order to reach that customer base, sales calls are made
to  hospital  pharmacies,  advertisements  are placed in medical  journals,  and
presentations of marketing  information are made to physicians  individually and
at medical conferences and in the hospital setting.  Abbott is also working with
hospitals to have Hextend approved for use and added to hospital formularies. As
is common in the pharmaceutical  industry,  many customers received free samples
of  Hextend,  which is often an  effective  way to  introduce  a new  product to
physicians,  but also may  result in a delay in the first  purchase  until a re-
order is needed.

         Hextend   competes  with  other  products  used  to  treat  or  prevent
hypovolemia, including albumin, generic 6% hetastarch solutions, and crystalloid
solutions.  The competing products have been commonly used in surgery and trauma
care for many years, and in order to sell Hextend,  physicians must be convinced
to change their product  loyalties.  Although albumin is expensive,  crystalloid
solutions and generic 6% hetastarch  solutions  sell at low prices.  In order to
compete  with other  products,  particularly  those  that sell at lower  prices,
Hextend  will  have  to  be  recognized  as  providing   medically   significant
advantages.  As part of the  marketing  program,  Abbott  and the  Company  will
finance a number of limited  medical  studies  comparing  outcomes  of  patients
receiving

                                       16






Hextend and patients receiving other products during surgery,  and comparing the
relative  patient care cost of using  Hextend  compared to other  products.  The
results of these studies will be published in a series of abstracts, reports and
peer reviewed journal articles intended for the target Hextend customer base. It
will take time to complete these studies and publish the results. The outcome of
the planned  medical  studies and timing of the publication of the results could
have an effect on the growth of demand for Hextend and sales by Abbott.

         The Company is discussing product licensing  arrangements with a number
of companies for over-seas  markets and is approaching  agreement to license its
products in certain parts of the world.  Although such arrangements could permit
the Company to receive  revenues  from the sale of its  products  expeditiously,
without the time and expense of developing its own manufacturing  facilities and
marketing  resources,  the Company  would have to share sales  revenues with the
participating  pharmaceutical  companies.  There  can be no  assurance  that any
additional  pharmaceutical  companies  will be willing  to enter into  marketing
arrangements on terms  acceptable to the Company.  If the Company does not enter
into licensing or other  arrangements  for the sale of a product in a particular
market, the Company would have to establish its own marketing organization.

Government Regulation

         The FDA and foreign regulatory  authorities will regulate the Company's
proposed products as drugs, biologicals, or medical devices, depending upon such
factors as the use to which the product will be put,  the  chemical  composition
and the  interaction  of the  product on the human body.  In the United  States,
products  that  are  intended  to be  introduced  into the  body,  such as blood
substitute  solutions for low temperature surgery and plasma expanders,  will be
regulated  as drugs  and  will be  reviewed  by the FDA  staff  responsible  for
evaluating biologicals.

         The Company's  domestic human drug products will be subject to rigorous
FDA review and approval procedures. After testing in animals, an Investigational
New Drug (IND)  application  must be filed with the FDA to obtain  authorization
for human testing.  Extensive clinical testing, which is generally done in three
phases,  must then be undertaken at a hospital or medical  center to demonstrate
optimal use, safety and efficacy of each product in humans.  Each clinical study
is conducted  under the auspices of an  independent  Institutional  Review Board
("IRB"). The IRB will consider,  among other things, ethical factors, the safety
of human subjects and the possible  liability of the  institution.  The time and
expense  required to perform this  clinical  testing can far exceed the time and
expense  of the  research  and  development  initially  required  to create  the
product.  No action can be taken to market any therapeutic product in the United
States until an appropriate  New Drug  Application  ("NDA") has been approved by
the FDA. Even after initial FDA approval has been obtained,  further studies may
be required to provide additional data on safety or to gain approval for the use
of a product as a treatment for clinical  indications other than those initially
targeted. In addition,  use of these products during testing and after marketing
could  reveal side effects  that could  delay,  impede or prevent FDA  marketing
approval,   resulting  in  a  FDA-ordered  product  recall,  or  in  FDA-imposed
limitations on permissible uses.

                                       17






         The FDA also  regulates  the  manufacturing  process of  pharmaceutical
products and requires that a portion of the clinical  trials for new products be
conducted  using  products  produced  in  compliance  with  "good  manufacturing
practices." See "Manufacturing."

         Sales of pharmaceutical  products outside the United States are subject
to foreign  regulatory  requirements  that vary widely from  country to country.
Even if FDA  approval  has been  obtained,  approval of a product by  comparable
regulatory  authorities  of  foreign  countries  must be  obtained  prior to the
commencement of marketing the product in those  countries.  The time required to
obtain  such  approval  may be longer or  shorter  than  that  required  for FDA
approval.

Patents and Trade Secrets

         The Company holds a number of United States patents having  composition
and methods of use claims covering BioTime's  proprietary  solutions,  including
Hextend and  PentaLyte.  The most recent U.S.  patents were issued  during 1998.
Patents  covering  certain of the Company's  solutions  have also been issued in
Australia,  Israel, and South Africa.  Additional patent  applications have been
filed in the United States and numerous other  countries for Hextend,  PentaLyte
and other solutions.

         There is no assurance  that any additional  patents will be issued,  or
that  any  patents  now  held or  later  obtained  by the  Company  will  not be
successfully  challenged by third parties and declared  invalid or infringing of
third party claims.  Further,  the  enforcement  of patent rights often requires
litigation against third party infringers,  and such litigation can be costly to
pursue.

         While the Company  believes that the protection of patents and licenses
is  important  to its  business,  the Company  also will rely on trade  secrets,
know-how and continuing  technological  advancement to maintain its  competitive
position.  The Company has entered into  intellectual  property,  invention  and
non-disclosure agreements with its employees and it is the Company's practice to
enter into  confidentiality  agreements  with its  consultants.  There can be no
assurance, however, that these measures will prevent the unauthorized disclosure
or use of the  Company's  trade  secrets  and  know-how  or that  others may not
independently develop similar trade secrets and know-how or obtain access to the
Company's trade secrets, know-how or proprietary technology.  If, in the future,
the  techniques  for use of the Company's  products  become widely known through
academic  instruction  or  publication,  patent  protection  would  become  more
important as a means of protecting the Company's market share for its products.

Competition

         The Company's  solutions  will compete with products  currently used to
treat or prevent hypovolemia,  including albumin,  other colloid solutions,  and
crystalloid  solutions  presently  manufactured  by  established  pharmaceutical
companies, and with human blood products. Some of

                                       18






these  products,  in  particular  crystalloid  solutions,  are commonly  used in
surgery and trauma care and sell at low prices.  In order to compete  with other
products,  particularly  those that sell at lower prices, the Company's products
will have to be recognized as providing medically  significant  advantages.  The
competing   products  are  being   manufactured   and  marketed  by  established
pharmaceutical  companies that have large research facilities,  technical staffs
and financial and marketing resources.  DuPont Pharmaceuticals presently markets
Hespan,  an artificial plasma volume expander.  Abbott and Baxter  International
manufacture  and  sell a  generic  equivalent  of  Hespan.  As a  result  of the
introduction  of generic  plasma  expanders  intended  to compete  with  Hespan,
competition in the plasma expander  market has intensified and wholesale  prices
have declined.

         To compete  with new and  existing  plasma  expanders,  the  Company is
developing  products  that contain  constituents  that may prevent or reduce the
physiological imbalances, bleeding, fluid overload, edema, poor oxygenation, and
organ failure that can occur when  competing  products are used. To compete with
existing  organ  preservation  solutions,  the  Company  is seeking to develop a
solution  that can be used to preserve  all organs  simultaneously  and for long
periods of time.

         A number of other  companies are known to be developing  hemoglobin and
synthetic red blood cell substitutes and technologies.  BioTime's  products have
been  developed  for  use  either  before  red  blood  cells  are  needed  or in
conjunction  with the use of red blood cells. In contrast,  hemoglobin and other
red blood cell  substitute  products are designed to remedy ischemia and similar
conditions  that may result from the loss of oxygen  carrying  red blood  cells.
Those products would not necessarily  compete with the Company's products unless
the  oxygenating  molecules  were included in solutions that could replace fluid
volume and prevent or reduce the physiological  imbalances as effectively as the
Company's products.  Generally, red blood cell substitutes are more expensive to
produce and potentially more toxic than Hextend and PentaLyte.

          Competition in the areas of business targeted by the Company is likely
to intensify further as new products and technologies reach the market. Superior
new products are likely to sell for higher  prices and  generate  higher  profit
margins once  acceptance by the medical  community is achieved.  Those companies
that are successful in introducing  new products and  technologies to the market
first may gain  significant  economic  advantages over their  competitors in the
establishment  of a customer base and track record for the  performance of their
products and  technologies.  Such companies will also benefit from revenues from
sales  which  could  be used  to  strengthen  their  research  and  development,
production,  and  marketing  resources.  All  companies  engaged in the  medical
products   industry  face  the  risk  of  obsolescence  of  their  products  and
technologies as more advanced or cost effective  products and  technologies  are
developed by their competitors.  As the industry matures, companies will compete
based upon the performance and cost effectiveness of their products.

Employees

         As of December 31, 1999, the Company employed 14 persons on a full-time
basis and 4 persons on a part-time  basis.  Three  full-time  employees  and two
part-time  employee  hold  Ph.D.  or Masters  Degrees  in one or more  fields of
science.

                                       19







Risk Factors

     Some of the factors that could materially  affect the Company's  operations
and  prospects  are  discussed  below.  There may be other  factors that are not
mentioned here or of which BioTime is not presently aware that could also affect
BioTime's operations.

Uncertainty of Future Sales; Competition

      The Company's  ability to generate  substantial  operating revenue depends
upon its success in  developing  and  marketing  its  products.  There can be no
assurance  that  Hextend  or any other  products  that  receive  FDA or  foreign
regulatory  approval  will be  successfully  marketed or that the  Company  will
receive sufficient  revenues from product sales to meet its operating  expenses.
The  acceptance  of the  Company's  products  and  technologies  by the  medical
profession  may take time to develop  because  physicians  and  hospitals may be
reluctant  to try a new product due to the high degree of risk  associated  with
the application of new technologies and products in the field of human medicine.

     The Company's plasma expander products will compete with products currently
used to treat or  prevent  hypovolemia,  including  albumin  and  other  colloid
solutions,  and crystalloid  solutions.  Some of these  products,  in particular
crystalloid solutions,  are commonly used in surgery and trauma care and sell at
low prices.  In order to compete with other  products,  particularly  those that
sell at lower  prices,  the  Company's  products  will have to be  recognized as
providing  medically  significant  advantages.  The competing products are being
manufactured   and  marketed  by  established   pharmaceutical   companies  with
substantial  resources.  DuPont  Pharmaceuticals  presently  markets Hespan,  an
artificial plasma volume expander.  Abbott and Baxter International  manufacture
and sell a generic  equivalent  of Hespan.  As a result of the  introduction  of
generic  plasma  expanders  intended to compete with Hespan,  competition in the
plasma expander market has intensified and wholesale prices have declined. There
also is a risk that the Company's competitors may succeed in developing safer or
more   effective   products  that  could  render  the  Company's   products  and
technologies obsolete or noncompetitive.

BioTime Needs to Raise Additional Capital

     The Company  needs to raise capital to meet its  operating  expenses  until
such time as it is able to generate  sufficient  revenues  from product sales or
royalties.  There can be no  assurance  that the  Company  will be able to raise
additional  funds on favorable  terms or at all, or that such funds,  if raised,
will  be  sufficient   to  permit  the  Company  to  continue  its   operations,
notwithstanding  the  progress of its  research and  development  projects.  The
Company's operating expenses will increase if it succeeds in bringing additional
products out of the laboratory  testing phase of  development  and into clinical
trials.  Additional  financing may be required for the continuation or expansion
of the Company's research and product development, additional clinical trials of
new products,  and production and marketing of Company products that receive FDA
or foreign  regulatory  approval.  Although  the Company  will  continue to seek
licensing fees from pharmaceutical companies for

                                       20






licenses to manufacture  and market the Company's  products  abroad,  additional
sales of  equity  or debt  securities  may be  required  to meet  the  Company's
short-term  capital needs. Sales of additional equity securities could result in
the dilution of the interests of present shareholders.

BioTime Products Cannot Be Marketed Without FDA and Other Regulatory Approvals

      The  products  that  BioTime  develops  cannot  be sold  until the FDA and
corresponding  foreign regulatory  authorities  approve the products for medical
use.  The  regulatory  process,   which  includes   preclinical,   clinical  and
post-clinical testing of each product to establish its safety and efficacy,  can
take several years to complete and require the  expenditure of substantial  time
and  funds.   Data  obtained  from  preclinical  and  clinical   activities  are
susceptible  to varying  interpretations  which  could  delay,  limit or prevent
regulatory approval.  In addition,  delays or rejections may be encountered as a
result of changes in FDA policy during the period of product development and FDA
regulatory review.  Similar delays may also be encountered in foreign countries.
There can be no assurance that, even after substantial  expenditures of time and
money,  regulatory  approval will be obtained for any products  developed by the
Company.  Moreover,  even if regulatory  approval of a product is granted,  such
approval may entail  limitations on the indicated uses for which the product may
be marketed.  After regulatory approval is obtained,  the approved product,  the
manufacturer  and the  manufacturing  facilities are subject to continual review
and periodic  inspections,  and a later discovery of previously unknown problems
with a product,  manufacturer  or facility  may result in  restrictions  on such
product or  manufacturer,  including  withdrawal of the product from the market.
Failure to comply with the applicable  regulatory  requirements can, among other
things, result in fines,  suspensions of regulatory approvals,  product recalls,
operating   restrictions  and  criminal   prosecution.   Additional   government
regulation may be established  which could prevent or delay regulatory  approval
of the Company's products.

Development Stage Company

      BioTime is in the development  stage,  and, to date, has been  principally
engaged  in  research  and  development  activities.  Only one of the  Company's
products  is  presently  on the  market,  and the  Company  has not  generated a
significant  amount of operating revenue from royalties on sales. As a result of
the developmental nature of its business, the Company can be expected to sustain
additional  operating  losses.  There can be no assurance  that the Company will
generate  sufficient  revenues  from the sale or  licensing  of its products and
technologies to be profitable.

Uncertainty as to the Successful Development of Medical Products

     The Company's business involves the attempt to develop new medical products
and technologies.  Such experimentation is inherently costly, time consuming and
uncertain as to its results.  If the Company is  successful  in developing a new
technology  or  product,  refinement  of  the  new  technology  or  product  and
definition of the practical  applications  and  limitations of the technology or
product may take years and require the expenditure of large sums of money.  From
the date of the Company's

                                       21






inception  through December 31, 1999, the Company spent  $16,582,509 on research
and  development,  and the  Company  expects to  continue  to incur  substantial
research and development expenses.

Absence of Manufacturing and Marketing Capabilities; Reliance Upon Licensing

      The Company  presently  does not have adequate  facilities or resources to
manufacture  its products or the  hydroxyethyl  starches  used in its  products.
BioTime  has  granted  Abbott an  exclusive  license to  manufacture  and market
Hextend  in the  United  States  and  Canada,  and  BioTime  plans to enter into
additional  arrangements  with  pharmaceutical  companies for the production and
marketing  of the  Company's  products in other  countries.  In  addition,  NPBI
International,  BV, a Netherlands  Company,  has the  facilities to  manufacture
Hextend for BioTime. However, there can be no assurance that the Company will be
successful in entering into additional manufacturing and marketing arrangements.
If  additional  manufacturing  and  marketing  arrangements  cannot  be  made on
acceptable  terms,  the  Company  may  have  to  construct  or  acquire  its own
manufacturing facilities and to establish its own marketing organization,  which
would entail significant expenditures of time and money.

Patents May Not Protect BioTime Products from Competition

      The Company has obtained patents in the United States,  Israel,  Australia
and  South  Africa,  and  has  filed  patent  applications  in  certain  foreign
countries,  for certain products,  including Hextend and PentaLyte. No assurance
can be given that any additional patents will be issued to the Company,  or that
the Company's patents will provide meaningful protection against the development
of competing  products.  There also is no assurance  that  competitors  will not
successfully  challenge the validity or  enforceability  of any patent issued to
the Company.  The costs required to uphold the validity and prevent infringement
of any patent issued to the Company could be substantial,  and the Company might
not have the resources available to defend its patent rights.

Prices and Sales of Products  May be Limited by Health  Insurance  Coverage  and
Government Regulation

      Success in selling BioTime's  products may depend in part on the extent to
which health insurance  companies,  HMOs, and government  health  administration
authorities  such as Medicare and Medicaid will pay for the cost of the products
and related  treatment.  Health  insurance  reimbursements  and HMO coverage now
include the cost of Hextend used in surgical procedures.  However,  there can be
no assurance that such reimbursements will continue.  In some foreign countries,
pricing or  profitability  of health  care  products  is  subject to  government
control.  In the United  States,  there have been a number of federal  and state
proposals to implement similar government controls, and new proposals are likely
to be made in the future.

                                       22






Dependence Upon Key Personnel

      The Company depends to a considerable  degree on the continued services of
its executive officers. Although the Company maintains key man life insurance in
the  amount  of  $1,000,000  on the  life of Dr.  Paul  Segall,  the loss of the
services of any of the executive  officers could have a material  adverse effect
on the Company. In addition, the success of the Company will depend, among other
factors, upon successful  recruitment and retention of additional highly skilled
and experienced management and technical personnel.

BioTime Does Not Pay Cash Dividends

      BioTime  does  not  pay  cash  dividends  on its  Common  Shares.  For the
foreseeable  future  it is  anticipated  that any  earnings  generated  from the
Company's  business  will be used to finance  the growth of the Company and will
not be paid out as dividends to BioTime shareholders.

The Price of BioTime Stock May Rise and Fall Rapidly

      BioTime  Common  Shares are traded on the  American  Stock  Exchange.  The
market  price  of the  Common  Shares,  like  that of the  common  stock of many
biotechnology  companies,  has been highly volatile. The price of BioTime shares
may rise  rapidly in response to certain  events,  such as the  commencement  of
clinical  trials of an  experimental  new drug, even though the outcome of those
trials and the likelihood of ultimate FDA approval remains uncertain. Similarly,
prices of BioTime  shares may fall rapidly in response to certain events such as
unfavorable  results  of  clinical  trials or a delay or  failure  to obtain FDA
approval.  The failure of the Company's earnings to meet analysts'  expectations
could result in a significant rapid decline in the market price of the Company's
shares.  In  addition,  the  stock  market  has  experienced  and  continues  to
experience extreme price and volume  fluctuations which have affected the market
price of the equity  securities of many  biotechnology  companies and which have
often been unrelated to the operating performance of these companies. Such broad
market fluctuations,  as well as general economic and political conditions,  may
adversely affect the market price of BioTime Common Shares.

Item 2. Facilities.

     The  Company  occupies  its office and  laboratory  facility  in  Berkeley,
California  under a lease  that  will  expire  on March 31,  2004.  The  Company
presently occupies approximately 8,200 square feet of space and pays rent in the
amount of $10,000 per month.  The rent will increase  annually by the greater of
3% and the  increase in the local  consumer  price  index,  subject to a maximum
annual  increase of 7%. The Company  also pays all  charges  for  utilities  and
garbage collection.

     The  Company  has an option to extend the term of the lease for a period of
three  years,  and to  terminate  the lease early upon six months  notice  after
September 30, 2000.

                                       23






     The Company uses, on a fee per use basis,  facilities for surgical research
on animals at an unaffiliated  privately run research center located in Winters,
California.  Contracting  for the use of  research  facilities  has  enabled the
Company to initiate its research projects without the substantial  capital cost,
overhead costs and delay  associated  with the  acquisition and maintenance of a
modern animal surgical research facility.

Item 3.   Legal Proceedings.

     The  Company  is not  presently  involved  in any  material  litigation  or
proceedings,  and to the Company's  knowledge no such  litigation or proceedings
are contemplated.

Item 4.   Submission of Matters to a Vote of Security Holders.

     Not Applicable.



                                       24






Item 5.   Market for Registrant's Common Equity and Related Stockholder Matters.

     The  Company's  Common  Shares  have been  trading  on the  American  Stock
Exchange  since August 31, 1999, and traded on the Nasdaq  National  Market from
April 28, 1998 to August  30,1999,  and on the Nasdaq SmallCap Market from March
5, 1992 through April 27, 1998. The closing price of the Company's Common Shares
on AMEX on March 20, 2000 was $14.19.

     The following table sets forth the range of high and low bid prices for the
Common  Shares for the fiscal  years ended June 30, 1997 and 1998 and the fiscal
years ended  December 31, 1998 (six  months) and  December  31,  1999,  based on
transaction  data as reported by Nasdaq and AMEX.  All prices have been adjusted
to give effect to the Company's  payment of a stock dividend during October 1997
to effect a three-for-one stock split.


Quarter Ended                      High                    Low
- -------------                      ----                    ---
March 31, 1997                     13.20                   8.08
June 30, 1997                      12.33                   7.58
September 30, 1997                 17.08                   8.67
December 31, 1997                  27.00                  18.50
March 31, 1998                     19.75                  11.00
June 30, 1998                      14.37                   5.81
September 30, 1998                 9.88                    5.50
December 31, 1998                  18.13                   7.00
March 31, 1999                     19.38                  12.88
June 30, 1999                      21.50                   8.63
September 30, 1999                 16.69                   8.13
December 31, 1999                  13.25                   8.19


     As of March 17, 2000,  there were 298  shareholders of record of the Common
Shares based upon information from the Registrar and Transfer Agent.

     The Company has paid no dividends on its Common  Shares since its inception
and does not plan to pay  dividends  on its  Common  Shares  in the  foreseeable
future.

                                       25






Item 6. Selected Financial Data.

The selected  financial  data as of December  31, 1999 and 1998,  June 30, 1998,
1997,  1996,  and 1995 and the period  from  inception  (November  30,  1990) to
December 31, 1999 presented  below have been derived from the audited  financial
statements  of the  Company.  The  selected  financial  data  should  be read in
conjunction  with the  Company's  financial  statements  and notes  thereto  and
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations" included elsewhere.


Statement of Operations Data:



                                           Six Months
                             Year Ended      Ended
                            December 31,   December 31,                       June 30,                        Period from Inception
                           ------------- ------------- ------------------------------------------------------  (November 30, 1990)
                                1999          1998         1998         1997           1996           1995      December 31, 1999
                           ------------- ------------- ------------ ------------- ------------ -------------   --------------------
                                                                                             
REVENUE:
Licensing Fee              $  1,037,500  $    250,000  $ 1,150,000  $     62,500   $    --       $     --          $    2,500,000
                           ------------- ------------- ------------ -------------  ------------  -------------     ---------------
EXPENSES:
Research and development   $ (4,900,521) $ (1,723,860) $(3,048,775) $  (2,136,325) $(1,142,168)  $( 1,791,698)     $  (16,582,509)
General and administrative   (1,896,690)     (710,131)  (1,849,312)    (1,209,546)    (954,049)      (808,432)         (9,686,454)
                           ------------- ------------- ------------  ------------- ------------  -------------     ---------------
Total expenses               (6,797,211)   (2,433,991)  (4,898,087)    (3,345,871)  (2,096,217)    (2,600,130)        (26,268,963)
                           ------------- ------------- ------------  ------------- ------------  -------------     ---------------
INTEREST AND OTHER
INCOME:                         279,827        89,513      294,741        189,161      130,882        222,383           1,582,574
                           ------------- ------------- ------------  ------------- ------------  -------------     ---------------

NET LOSS                   $ (5,479,884) $ (2,094,478) $(3,453,346)  $ (3,094,210) $(1,965,335)  $ (2,337,747)     $  (22,186,389)
                           ============= ============= ============  ============= ============  =============     ===============
BASIC AND DILUTED NET
LOSS PER SHARE             $      (0.51) $      (0.21) $     (0.35)  $      (0.35) $     (0.25)  $      (0.30)
                           ============= ============= ============  ============= ============  =============
COMMON AND EQUIVALENT
SHARES USED IN COMPUTING
PER SHARE AMOUNTS            10,688,100    10,008,468    9,833,156     8,877,024     7,827,732     7,900,392
                           ============= ============= ============  ============= ============  =============




Balance Sheet Data:



                                          December 31, 1999         December 31,1998             June 30, 1998
                                       ------------------------     --------------------      ------------------
                                                                                      
Cash, cash equivalents and
short term investments                        $5,292,806                $2,429,014                $4,105,781

Working Capital                                4,804,579                 2,157,578                 3,724,663

Total assets                                   5,678,644                 2,809,455                 4,641,780

Shareholders' equity                           5,083,132                 2,384,752                 4,014,750



                                       26






Item 7.           Management's Discussion and Analysis of Financial Condition
                  and Results of Operations.

Overview

         Since its  inception  in November  1990,  the Company has been  engaged
primarily  in  research  and  development  activities.  The  Company has not yet
generated  significant  operating  revenues,  and as of  December  31,  1999 the
Company had incurred a cumulative net loss of $22,186,389. The Company's ability
to generate substantial operating revenue depends upon its success in developing
and marketing or licensing its plasma  volume  expanders and organ  preservation
solutions and technology for medical use.

         Most of the  Company's  research  and  development  efforts  have  been
devoted to the development of the Company's first three blood volume replacement
products:  Hextend,  PentaLyte,  and HetaCool. By testing and bringing all three
products to the market,  BioTime can increase its market share by providing  the
medical community with solutions to match patients' needs.

         The Company's first product,  Hextend(R), is a physiologically balanced
blood plasma volume expander, for the treatment of hypovolemia. Hypovolemia is a
condition  often  associated  with blood  loss  during  surgery or from  injury.
Hextend maintains circulatory system fluid volume and oncotic pressure and keeps
vital organs perfused during surgery.  Hextend, approved for large-volume use in
major  surgery,   is  the  only  blood  plasma  volume  expander  that  contains
hetastarch,  buffer,  multiple electrolytes and glucose.  Hextend is designed to
compete  with and to replace  flawed  older  products  such as albumin and other
colloid  solutions,  as well as  crystalloid  solutions,  that have been used to
maintain  fluid  volume  and blood  pressure  during  surgery.  Hextend  is also
completely sterile to avoid risk of infection.  Health insurance  reimbursements
and HMO coverage now include the cost of Hextend used in surgical procedures.

         Hextend is being sold in the United States by Abbott Laboratories under
an exclusive license from the Company. Abbott also has the right to sell Hextend
in Canada,  where an application for marketing approval is pending.  BioTime has
retained all rights to  manufacture,  sell or license Hextend and other products
in  all  other  countries.  Abbott  also  has a  right  to  obtain  licenses  to
manufacture  and  sell  other  BioTime   products.   See  "Licensing"  for  more
information about the license granted to Abbott Laboratories.

          Because  Hextend is a surgical  product,  sales will be  determined by
anesthesiologists, surgeons and hospital pharmacists. Abbott's marketing program
for  Hextend  includes,  in  addition  to  advertisements  in medical  journals,
educational  presentations  for its sales force and  physicians  explaining  the
various benefits of using Hextend. Abbott is also working with hospitals to have
Hextend approved for use and added to hospital formularies.

         As part of the marketing program, Abbott and the Company will finance a
number of limited  medical  studies  comparing  outcomes of  patients  receiving
Hextend and patients receiving other

                                       27






products  during  surgery  and  comparing  the  relative  cost of using  Hextend
compared  to other  products.  It will take time to complete  these  studies and
publish the results.  The outcome of the planned  medical  studies and timing of
the  publication of the results could have an effect on the growth of demand for
Hextend and sales by Abbott.

         To facilitate  product  acceptance,  substantial  quantities of Hextend
were  introduced  into  hospitals at no charge.  While this may cause a delay in
revenues  from  product  sales,  it  is  often  effective  in  obtaining  market
penetration.

         Under its License Agreement with the Company,  Abbott will report sales
of Hextend and pay the Company the  royalties and license fees due on account of
such sales within 90 days after the end of each  calendar  quarter.  The Company
will  recognize  such  revenues  in the  quarter  in which the  sales  report is
received,  rather than the quarter in which the sales took place.  Revenues  for
the year ended  December  31,  1999  include  royalties  on sales made by Abbott
during the three months ended September 30, 1999. Royalties on sales made during
the fourth quarter of 1999 will not be recognized by the Company until the first
quarter of fiscal year 2000.  Royalties  for both  periods  were not material to
BioTime's financial results.

         Abbott  initiated  a more  active  phase of the  marketing  program for
Hextend in the fourth  quarter of 1999,  and has continued  such activity in the
first quarter 2000. In this regard,  the first major  marketing  presentation of
Hextend at a medical conference  occurred during October 1999.  Abbott's current
advertising  campaign  began during  January 2000.  The new Hextend  advertising
campaign features high quality, multi-color, multi-page print spreads that focus
on the  physiological  basis of using a  plasma-like  substance  to replace lost
blood volume,  and stress the ability of Hextend to support vital  physiological
processes  at high  volume  use.  The target  customer  base of the  advertising
campaign  has  recently  been  expanded  by  directing  advertising  in  medical
journals,  medical  conferences  and  sales  calls to a broad  array of  medical
specialists.   The  potential  favorable  impact  of  these  expanded  marketing
activities  may not be felt  for  several  months,  and  are  not  reflected  in
royalties payable to BioTime with respect to the 1999 periods.

         The Company  estimates that Hextend has now been  successfully  used in
several thousand patients  undergoing surgery at over 300 hospitals.  The number
of hospitals in which Hextend is being used, the number of hospital  formularies
that have approved Hextend,  and the number of patients  receiving  Hextend,  is
growing.

         The  Company  intends  to  enter  global  markets   through   licensing
agreements  with overseas  pharmaceutical  companies.  By licensing its products
abroad,  the  Company  will  avoid the  capital  costs and  delays  inherent  in
acquiring or establishing its own  pharmaceutical  manufacturing  facilities and
establishing an international marketing organization. A number of pharmaceutical
companies  in Europe,  Asia and other  markets  around the world have  expressed
their  interest in obtaining  licenses to  manufacture  and market the Company's
products.  The Company is continuing to meet with  representatives of interested
companies and is approaching  agreement to license its products in certain parts
of the world.  In addition,  the Company is  discussing  an  arrangement  with a
leading  producer of the  hydroxyethyl  starch used in Hextend through which the
Company  would obtain a source of supply of that  ingredient  and  assistance in
regulatory matters for approval of Hextend for the European market.

                                       28






         The Company is also pursuing a global clinical trial strategy, the goal
of which is to permit the Company to obtain regulatory approval for its products
as quickly and economically as practicable. For example, the United States Phase
III clinical trials of Hextend  involved 120 patients and were completed in less
than 12 months.  Although regulatory  requirements vary from country to country,
the Company may be able to file applications for foreign regulatory  approval of
its products based upon the results of the United States  clinical  trials.  The
Company's  application to market Hextend in Canada had been found acceptable for
review as a New Drug Submission by the Canadian Health  Protection Branch (HPB),
and the Company is now awaiting  completion of HPB's review of that application.
Regulatory approvals for countries that are members of the European Union may be
obtained through a mutual recognition  process.  The Company has determined that
several member nations would accept an application  based upon the United States
clinical  trials.  If  approvals  based upon those trials can be obtained in the
requisite  number of member  nations,  then the Company  would be  permitted  to
market Hextend in all 16 member nations.

         In order to commence  clinical  trials for  regulatory  approval of new
products, such as PentaLyte and HetaCool, or new therapeutic uses of Hextend, it
will  be  necessary  for  the  Company  to  prepare  and  file  with  the FDA an
Investigational  New Drug  Application  ("IND")  or an  amendment  to expand the
present IND for  additional  Hextend  studies.  Filings with foreign  regulatory
agencies will be required to commence clinical trials overseas.

         In addition to developing clinical trial programs, the Company plans to
continue to provide  funding  for its  laboratory  testing  programs at selected
universities,  medical  schools  and  hospitals  for the  purpose of  developing
additional uses of Hextend, PentaLyte, HetaCool, and other new products, but the
amount of research that will be conducted at those institutions will depend upon
the Company's  financial status.  Because the Company's research and development
expenses, clinical trial expenses, and production and marketing expenses will be
charged against earnings for financial  reporting  purposes,  management expects
that losses from  operations  will  continue to be incurred for the  foreseeable
future.

Change of Fiscal Year

         In  November  1998,  the Board of  Directors  approved  a change to the
Company's  operating  fiscal  year from a fiscal year ending June 30 to a fiscal
year  ending  December  31,  beginning  January 1, 1999.  See Note 1 of Notes to
Financial Statements. Accordingly, the accompanying financial statements are for
the twelve  months ended  December 31, 1999,  the six months ended  December 31,
1998,  the twelve  months ended June 30, 1998  ("Fiscal  1998"),  and the twelve
months ended June 30, 1997 ("Fiscal 1997").

                                       29






Results of Operations

Year Ended December 31, 1999 and Six Months Ended December 31, 1998

         The Company recognized $1,037,500 of license fees for the year ended
December 31, 1999,  and $250,000  during the six month period ended December 31,
1998. The $1,037,500  includes $850,000 for achieving the final milestones under
its  license  agreement  with  Abbott.  The  remaining  $187,500  of license fee
represents the deferred  portion of the  license fee payment  received for
signing of the License Agreement signed in 1997. For the year ended December 31,
1999, interest and other income was $279,827, and for the six month period ended
December 31, 1998, interest and other income was $89,513.

         Research and  development  expenses were  $4,900,521 for the year ended
December 31, 1999,  and  $1,723,860  for the six month period ended December 31,
1998.  Research and  development  expenses  include  laboratory  study expenses,
European clinical trial expenses, salaries, preparation of additional regulatory
applications  in the United  States and Europe,  manufacturing  of solution  for
trials,  and  consultants'  fees. It is expected  that research and  development
expenses  will  increase as the Company  commences  new clinical  studies of its
products in the United States and Europe.

         General and administrative  expenses were $1,896,690 for the year ended
December 31, 1999, and were $710,131 for the six month period ended December 31,
1998. General and administrative  expenses include salaries,  consultants' fees,
and general operating expenses.

Years Ended June 30, 1998 and June 30, 1997

         During Fiscal 1997,  the Company  received  $1,400,000  for signing the
Abbott License Agreement and achieving a license fee milestone pertaining to the
allowance of certain  patent claims  pending.  During  Fiscal 1998,  the Company
received an additional milestone fee of $250,000 for filing its NDA for Hextend.
The  Company  deferred  recognition  of a portion  of the  license  fee  payment
received  for  signing  of  the  License  Agreement  ($1,000,000).  The  Company
recognized  $62,500 of license fee revenue  during Fiscal 1997,  and  $1,150,000
during Fiscal 1998.  Interest and other income  increased to $294,741 for Fiscal
1998 from $189,161 for Fiscal 1997. The increase in interest and other income is
attributable  to the increase in cash and cash  equivalents  from the  Company's
sale of Common Shares through a subscription  rights offering that was completed
during February 1997.

         Research and  development  expenses  increased to $3,048,775 for Fiscal
1998,  from $2,136,325 for Fiscal 1997. The increase in research and development
expenses is attributable to the cost of preparing and filing an NDA for Hextend,
and preparing for future regulatory  filings in Europe and Canada.  Research and
development  expenses  increased to $2,136,325 for Fiscal 1997,  from $1,142,168
for  Fiscal  1996.  The  increase  in  research  and  development  expenses  was
attributable  to the  Company's  Phase III  human  clinical  trials of  Hextend,
initiation of a clinical trial

                                       30






at Middlesex  Hospital in London,  England,  and an accrual for bonuses  granted
after June 30, 1997. It is expected that research and development  expenses will
increase  as the Company  continues  clinical  testing of Hextend and  commences
clinical studies of other products.

         General and administrative  expenses increased to $1,849,312 for Fiscal
1998,  from  $1,209,546  for Fiscal 1997.  This increase is  attributable  to an
increase in the general operations of the Company, an increase in personnel, and
bonus awards.  General and  administrative  expenses increased to $1,209,546 for
Fiscal  1997.  This  increase  was  attributable  to  an  amortization   expense
associated  with  agreements  the Company  entered into with  certain  financial
advisors and  consultants  in exchange  for  warrants to purchase the  Company's
stock,  an increase in the general  operations  of the  Company,  an increase in
personnel, and bonus awards.

Taxes

         At December 31, 1999,  the Company had a cumulative  net operating loss
carryforward of approximately $23,000,000 for federal income tax purposes.

Liquidity and Capital Resources

         Since  inception,  the Company has  primarily  financed its  operations
through the sale of equity  securities  and licensing  fees, and at December 31,
1999 the  Company  had cash and cash  equivalents  of  $5,292,800.  The  Company
expects that its cash on hand will be sufficient to finance its  operations  for
the next 12 months, but will curtail the pace of its product development efforts
unless its cash  resources  increase  through a growth in revenues or additional
equity investment. Accordingly, additional funds are required for the successful
completion of the Company's product development activities.  The Company has not
received  significant  royalties  and  licensing  fees from the sale of Hextend.
Although the Company will continue to seek  licensing  fees from  pharmaceutical
companies for licenses to manufacture and market the Company's  products abroad,
additional  sales of  equity  or debt  securities  may be  required  to meet the
Company's  short-term capital needs. Sales of additional equity securities could
result in the dilution of the interests of present shareholders.

         The amount of license fees and royalties that may be earned through the
licensing and sale of the Company's products, as well as the future availability
and terms of equity and debt financings,  are uncertain.  The  unavailability or
inadequacy of financing or revenues to meet future capital needs could force the
Company to modify,  curtail, delay or suspend some or all aspects of its planned
operations.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

         The Company did not hold any market risk  sensitive  instruments  as of
December 31, 1999, December 31, 1998, June 30, 1998 or June 30, 1997.

                                       31






Item 8.   Financial Statements and Supplementary Data

                                           INDEX TO FINANCIAL STATEMENTS


                                                                  Pages
                                                                  -----

Independent Auditors' Report                                        33

Balance Sheets As of December 31, 1999 and
December 31, 1998                                                   34

Statements of Operations For the Year Ended
December 31, 1999, For the Six Months Ended
December 31, 1998, the Two Years in the Period
Ended June 30, 1998 and the Period From Inception
(November 30, 1990) to December 31, 1999                            35

Statements of Shareholders' Equity For the Year Ended
December 31, 1999, the Six Months Ended  December 31, 1998,
the Two Years in the Period Ended June 30, 1998 and the Period
From Inception (November 30, 1990) to December 31, 1999            36-37

Statements of Cash Flows For the Year Ended
December 31, 1999, the Six Months Ended
December 31, 1998, the Two Years in the Period
Ended June 30, 1998 and the Period From Inception
(November 30, 1990) to December 31, 1999                           38-39

Notes to Financial Statements                                      40-50















                                       32







INDEPENDENT AUDITORS' REPORT

To the Board of Directors and Shareholders
BioTime, Inc.:

We have audited the accompanying balance sheets of BioTime,  Inc. (a development
stage  company) as of December 31, 1999 and  December 31, 1998,  and the related
statements of operations, shareholders' equity and cash flows for the year ended
December 31, 1999, the six months ended December 31, 1998, each of the two years
in the period  ended  June 30,  1998,  and the period  from  November  30,  1990
(inception)  to  December  31,  1999.   These   financial   statements  are  the
responsibility of the Company's management.  Our responsibility is to express an
opinion on these financial statements based on our audits.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our  opinion,  such  financial  statements  present  fairly,  in all material
respects,  the financial  position of BioTime,  Inc. as of December 31, 1999 and
December 31, 1998,  and the results of its operations and its cash flows for the
year ended December 31, 1999,  the six months ended  December 31, 1998,  each of
the two years in the period ended June 30, 1998 and the period from November 30,
1990  (inception) to December 31, 1999, in conformity  with  generally  accepted
accounting principles.

The Company is in the development stage as of December 31, 1999. As discussed in
Note 1 to the  financial  statements,  successful  completion  of the  Company's
product   development  program  and  ultimately  the  attainment  of  profitable
operations  is dependent  upon future  events,  including  maintaining  adequate
financing to fulfill its development  activities,  obtaining regulatory approval
for products ultimately developed, and achieving a level of revenues adequate to
support the Company's cost structure.

/s/ DELOITTE & TOUCHE LLP
San Francisco, California
February 10, 2000

                                       33






                                                   BIOTIME, INC.
                                           (A Development Stage Company)

                                                  BALANCE SHEETS

           ASSETS                                                               December 31,        December 31,
                                                                                    1999                1998
                                                                              -----------------   ----------------
                                                                                         
CURRENT ASSETS
Cash and cash equivalents                                                     $      5,292,806    $     2,429,014
Prepaid expenses and other current assets                                              107,285            153,267
                                                                              -----------------   ----------------
Total current assets                                                                 5,400,091          2,582,281
                                                                              -----------------   ----------------

EQUIPMENT, Net of accumulated depreciation of $276,647 and $217,107                    268,653            166,474
DEPOSITS AND OTHER ASSETS                                                                9,900             60,700
                                                                              -----------------   ----------------
TOTAL ASSETS                                                                  $      5,678,644          2,809,455
                                                                              =================   ================

        LIABILITIES AND SHAREHOLDERS' EQUITY

CURRENT LIABILITIES
Accounts payable                                                              $        595,512    $       237,203
Deferred revenue - current portion                                                          --            187,500
                                                                              -----------------   ----------------
Total current liabilities                                                              595,512            424,703
                                                                              -----------------   ----------------

COMMITMENTS (Note 6)

SHAREHOLDERS' EQUITY:
Preferred Shares, no par value,  undesignated as to Series,
 authorized 1,000,000 shares; none outstanding in 1999 and 1998 (Note 4)

Common Shares, no par value, authorized 40,000,000 shares; issued and
 outstanding shares; 10,891,031in 1999 and 10,033,079 in 1998 (Note 4)              27,200,380         19,022,116
Contributed Capital                                                                     93,972             93,972
Deficit accumulated during development stage                                       (22,211,220)       (16,731,336)
                                                                              -----------------   ----------------
Total shareholders' equity                                                           5,083,132          2,384,752
                                                                              -----------------   ----------------
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY                                    $      5,678,644    $     2,809,455
                                                                              =================   ================
<FN>
See notes to financial statements.
</FN>


                                       34






                                  BIOTIME, INC.
                          (A Development Stage Company)

                            STATEMENTS OF OPERATIONS




                                                               Six Months
                                                Year Ended       Ended             Year Ended June 30,       Period from Inception
                                                December 31,  December 31,   ----------------------------    (November 30, 1990) to
                                                   1999           1998           1998            1997           December 31, 1999
                                                ------------  ------------   ------------    ------------    ----------------------
                                                                                              
REVENUE:

License fee                                     $ 1,037,500   $    250,000    $ 1,150,000     $    62,500       $   2,500,000
                                                ------------  ------------   ------------    ------------      --------------

EXPENSES:

Research and development                         (4,900,521)   (1,723,860)    (3,048,775)     (2,136,325)        (16,582,509)
General and administrative                       (1,896,690)     (710,131)    (1,849,312)     (1,209,546)         (9,686,454)
                                                ------------  ------------   ------------    ------------      --------------
Total expenses                                   (6,797,211)   (2,433,991)    (4,898,087)     (3,345,871)        (26,268,963)
                                                ------------  ------------   ------------    ------------      --------------

INTEREST AND OTHER INCOME:                          279,827        89,513        294,741         189,161           1,582,574
                                                ------------  ------------   ------------    ------------      --------------

NET LOSS                                        $(5,479,884)  $(2,094,478    $(3,453,346)    $(3,094,210)      $ (22,186,389)
                                                ============  ============   ============    ============      ==============

BASIC AND DILUTED LOSS PER SHARE                $     (0.51)  $     (0.21)   $     (0.35)    $     (0.35)
                                                ============  ============   ============    ============

COMMON AND EQUIVALENT SHARES
USED IN COMPUTING PER SHARE
AMOUNTS:

BASIC AND DILUTED                                10,688,100    10,008,468      9,833,156       8,877,024
                                                ============  ============   ============    ============
<FN>
See notes to financial statements.
</FN>


                                       35






                                  BIOTIME, INC.
                          (A Development Stage Company)

                       STATEMENTS OF SHAREHOLDERS' EQUITY





                                            Series A Convertible
                                             Preferred Shares            Common Shares                             Deficit
                                           ---------------------   -----------------------                      Accumulated
                                           Number of                 Number                 Contributed           During
                                            Shares      Amount     of Shares      Amount      Capital        Development Stage
                                           ---------   ---------   -----------   ----------  -----------    --------------------
                                                                                       
BALANCE, November 30, 1990
 (date of inception)                          --          --          --           --          --                --

NOVEMBER 1990
 Common shares issued for cash                                     1,312,758    $    263

DECEMBER 1990:
 Common shares issued for
 stock of a separate entity at fair value                          1,050,210     137,400
 Contributed equipment at appraised
 value                                                                                       $ 16,425
 Contributed cash                                                                              77,547

MAY 1991:
 Common shares issued for cash
 less offering costs                                                 101,175      54,463
 Common shares issued for stock
 of a separate entity at fair value                                  100,020      60,000

JULY 1991:
 Common shares issued for
 services performed                                                   30,000      18,000

AUGUST-DECEMBER 1991
 Preferred shares issued for
 cash less offering costs of $125,700      360,000    $474,300

MARCH 1992:
 Common shares issued for
 cash less offering costs of $1,015,873                            2,173,500    4,780,127
 Preferred shares converted
 into common shares                       (360,000)   (474,300)      360,000      474,300
 Dividends declared and paid
 on preferred shares                                                                                            $(24,831)

MARCH  1994:
 Common shares issued for cash less
 offering  costs of  $865,826                                      2,805,600    3,927,074

JANUARY-JUNE 1995:
Common shares repurchased
 with cash                                                          (253,800)    (190,029)

JULY 1995-JUNE 1996:
Common shares issued for cash                                        608,697    1,229,670
Common shares repurchased with cash                                  (18,600)     (12,693)
Common shares warrants and options
 granted for services                                                             356,000

NET LOSS                                                                                                       (8,064,471)
                                           ---------   ---------   ----------   ----------   ----------      --------------
BALANCE AT JUNE 30, 1996                      --       $  --       8,269,560    10,834,575      93,972         (8,089,302)

<FN>
See notes to financial statements.                                                                       (Continued)
</FN>


                                       36






                                  BIOTIME, INC.
                          (A Development Stage Company)

                       STATEMENTS OF SHAREHOLDERS' EQUITY



                                           Series A Convertible
(Continued)                                  Preferred Shares           Common Shares                            Deficit
                                           --------------------    ------------------------                    Accumulated
                                           Number of                Number of               Contributed           During
                                            Shares     Amount        Shares       Amount      Capital       Development Stage
                                           ---------  ---------    -----------  ----------   ----------     -----------------
                                                                                       
 Common shares issued for cash less
 offering costs of $170,597                                        849,327      5,491,583
 Common shares issued for cash
 (exercise of options and warrants)                                490,689      1,194,488
 Common shares warrants and options
 granted for service                                                              105,000

NET LOSS                                                                                                        (3,094,210)
                                           ---------  ---------    ----------   ----------   ---------       ----------------
BALANCE AT JUNE 30, 1997                      --      $   --        9,609,576    $17,625,646  $ 93,972        $ (11,183,512)

Common shares issued for cash
(exercise of options)                                                 337,500        887,690
Common shares warrants and options
granted for service                                                                   38,050
Common shares issued for services                                         500          6,250

NET LOSS                                                                                                        (3,453,346)
                                           ---------  ---------    -----------  ----------   ---------      ----------------
BALANCE AT JUNE 30,1998                       --         --         9,947,576   $18,557,636  $  93,972      $  (14,636,858)

Common shares issued for cash
(exercise of options and warrants)                                     84,000       395,730
Common shares options granted for services                                           50,000
Common shares issued for
 services                                                               1,500        18,750

NET LOSS                                                                                                        (2,094,478)
                                           ---------  ---------    ----------   ----------   ---------      ----------------
BALANCE AT DECEMBER 31, 1998                  --      $   --       10,033,076   $19,022,116  $ 93,972       $  (16,731,336)

Common shares issued for cash (less
 offering costs of $128,024)                                          751,654     7,200,602
Common shares issued for cash and
 exchange for 2,491 common shares which
 were canceled (exercise of options)                                   65,509       199,810
Common shares issued for services                                         792        9,900
Common shares warrant donated (Note 4)                                             552,000
Common shares issued for cash (exercise
 of warrant)                                                           40,000       20,000
Options granted for services                                                       195,952

NET LOSS                                                                                                        (5,479,884)
                                           ---------  ---------    ----------   -----------  ---------      ----------------
BALANCE AT DECEMBER 31, 1999                   --     $   --       10,891,031   $27,200,380  $  93,972$        (22,211,220)
                                           =========  =========    ==========   ===========  =========      ================

<FN>
See notes to financial statements.                                                                        (Concluded)
</FN>


                                       37






                                  BIOTIME, INC.
                          (A Development Stage Company)

                            STATEMENTS OF CASH FLOWS


                                                                                                                      Period
                                                   Year Ended       Six Months          Year Ended June 30         from Inception
                                                  December 31,     December 31,    ---------------------------  (November 30, 1990)
                                                       1999            1998             1998          1997     to December 31, 1999
                                                  -------------   --------------   ------------  -------------- -------------------
                                                                                                   
OPERATING ACTIVITIES:
Net loss                                          $ (5,479,884)   $  (2,094,478)   $(3,453,346)  $  (3,094,210)      $ (22,186,389)
Adjustments to reconcile net loss to net cash
operating activities:
 Deferred revenue                                     (187,500)        (250,000)      (500,000)        (62,500)         (1,000,000)
 Depreciation                                           59,540           28,582         49,284          41,023             276,647
Cost of Donation - warrants                            552,000                                                             552,000
 Cost of services - shares, options and warrants       220,574           78,750         44,300         240,821             797,902
 Supply reserves                                                                       100,000         100,000             200,000
 Changes in operating assets and  liabilities:
  Research and development supplies on hand                                                                               (200,000)
  Prepaid expenses and other current
   assets                                               31,260           87,367         13,197        (180,837)           (107,285)
  Deposits and other assets                             50,800           34,000        (65,000)        (24,722)             (9,900)
  Accounts payable                                     358,309           47,673        (59,638)        119,939             595,512
  Accrued compensation                                                                (175,000)        175,000                  --
  Deferred revenue                                                                    (400,000)      1,400,000           1,000,000
                                                  -------------   --------------   ------------  --------------       -------------
Net cash used in operating activities               (4,394,901)      (2,068,106)    (4,446,203)     (1,285,486)        (20,081,513)
                                                  -------------   --------------   ------------  --------------       -------------

INVESTING ACTIVITIES:
Sale of investments                                                                                                        197,400
Purchase of short-term investments                                                                                      (9,946,203)
Redemption of short-term investments                                                                                     9,946,203
Purchase of equipment and furniture                   (161,719)          (4,391)      (147,340)       (32,072)            (528,875)
                                                  -------------   --------------   ------------  -------------        -------------
Net cash  used in investing  activities               (161,719)          (4,391)      (147,340)       (32,072)            (331,475)
                                                  -------------   --------------   ------------  -------------        -------------

FINANCING ACTIVITIES:
Issuance of preferred shares for cash                                                                                      600,000
Preferred shares placement costs                                                                                          (125,700)
Issuance of common shares for cash                   7,328,626                                      5,662,180           23,701,732
Common shares placement costs                         (128,024)                                      (170,597)          (2,180,320)
Net proceeds from exercise of common share
 options and warrants                                  219,810          395,730        887,690      1,194,488            3,860,088
Contributed capital - cash                                                                                                  77,547
Dividends paid on preferred shares                                                                                         (24,831)
Repurchase of common shares                                                                                               (202,722)
                                                  -------------   --------------   ------------  -------------        -------------
Net cash provided by  financing activities           7,420,412          395,730        887,690      6,686,071           25,705,794
                                                  -------------   --------------   ------------  -------------        -------------
INCREASE (DECREASE) IN CASH AND CASH
EQUIVALENTS                                          2,863,792       (1,676,767)    (3,705,853)     5,368,513            5,292,806

CASH AND CASH EQUIVALENTS:
At beginning of period                               2,429,014        4,105,781      7,811,634      2,443,121                   --
                                                  -------------   --------------   ------------  -------------        -------------
At end of period                                     5,292,806    $   2,429,014    $ 4,105,7$1   $  7,811,634            5,292,806
                                                  =============   ==============   ============  =============        =============
<FN>
See notes to financial statements.                                                                                     (Continued)
</FN>


                                       38






                                  BIOTIME, INC.
                          (A Development Stage Company)

                            STATEMENTS OF CASH FLOWS



                                                                                                                      Period
                                                   Year Ended       Six Months          Year Ended June 30         from Inception
                                                  December 31,     December 31,    ---------------------------   (November 30, 1990)
                                                      1999             1998             1998          1997      to December 31, 1999
                                                  -------------   --------------   ------------  -------------- -------------------
                                                                                               
NONCASH FINANCING AND
 INVESTING ACTIVITIES:
Receipt of contributed equipment                                                                                 $     16,425
Issuance of common shares
 in exchange for shares of
 common stock of Cryomedical
 Sciences, Inc. in a stock-for-stock
 transaction                                                                                                     $    197,400
Granting of options and warrants for
 services                                         $   195,952     $   50,000       $   38,050    $   105,000     $    762,002
Issuance of common shares in exchange for
services                                          $     9,900     $   18,750       $    6,250                    $     34,900
<FN>
See notes to financial statements.                                                                        (Concluded)
</FN>



                                       39






                                  BIOTIME, INC.
                          (A Development Stage Company)

                          NOTES TO FINANCIAL STATEMENTS

1.   GENERAL AND DEVELOPMENT STAGE ENTERPRISE

     General - BioTime,  Inc. (the Company) was organized November 30, 1990 as a
     California corporation. The Company is a biomedical organization, currently
     in the development  stage, which is engaged in the research and development
     of synthetic plasma expanders, blood volume substitute solutions, and organ
     preservation  solutions,  for use in surgery, trauma care, organ transplant
     procedures, and other areas of medicine.

     Certain  Significant Risks and Uncertainties - The preparation of financial
     statements in conformity  with  generally  accepted  accounting  principles
     requires  management  to make  estimates  and  assumptions  that affect the
     reported  amounts of assets and  liabilities  and  disclosure of contingent
     assets and  liabilities  at the date of the  financial  statements  and the
     reported amounts of revenues and expenses during the reporting period. Such
     management estimates include certain accruals.  Actual results could differ
     from those estimates.

     The Company's operations are subject to a number of factors that can affect
     its operating results and financial condition. Such factors include but are
     not  limited  to the  following:  the  results  of  clinical  trials of the
     Company's products;  the Company's ability to obtain United States Food and
     Drug Administration and foreign regulatory approval to market its products;
     competition from products manufactured and sold or being developed by other
     companies;  the  price of and  demand  for any  Company  products  that are
     ultimately sold; the Company's ability to obtain  additional  financing and
     the terms of any such financing that may be obtained; the Company's ability
     to negotiate  favorable  licensing  or other  manufacturing  and  marketing
     agreements for its products;  the  availability of ingredients  used in the
     Company's  products;  and the availability of reimbursement for the cost of
     the  Company's  products (and related  treatment)  from  government  health
     administration  authorities,  private  health  coverage  insurers and other
     organizations.

     Development  Stage  Enterprise  - Since  inception,  the  Company  has been
     engaged in research  and  development  activities  in  connection  with the
     development  of  synthetic  plasma   expanders,   blood  volume  substitute
     solutions  and  organ  preservation   products.  The  Company  has  limited
     operating  revenues and has incurred  operating  losses of $22,186,389 from
     inception to December 31, 1999. The successful  completion of the Company's
     product  development   program  and,   ultimately,   achieving   profitable
     operations is dependent upon future events including  maintaining  adequate
     capital to finance its future development activities,  obtaining regulatory
     approvals  for the products it develops  and  achieving a level of revenues
     adequate to support the Company's cost structure.

                                       40






2.   SIGNIFICANT ACCOUNTING POLICIES

     Change in fiscal year - On November  12,  1998,  the Board of  Directors of
     BioTime  determined  that it would be in the best  interests of the Company
     and its shareholders to change the Company's fiscal year from one ending on
     June 30 to one ending on December 31 and, accordingly,  the Company adopted
     a  December  31  or  calendar  year-end   beginning  on  January  1,  1999.
     Accordingly,  the  accompanying  statements  of  operations,  shareholders'
     equity and cash flows  include  the  transition  fiscal  period for the six
     months from July 1, 1998 to December 31, 1998.

     Equipment is stated at cost or, in the case of donated  equipment,  at fair
     market value. Equipment is being depreciated using the straight-line method
     over a period of thirty-six to eighty-four months.

     Patent costs associated with obtaining  patents on products being developed
     are expensed as research and  development  expenses  when  incurred.  These
     costs totaled  $160,221 for the year ended  December 31, 1999,  $47,781 for
     the six month period ended  December 31, 1998,  $81,303 and $95,362 for the
     years  ended  June  30,  1998 and  1997,  respectively,  and  cumulatively,
     $661,284 for the period from inception  (November 30, 1990) to December 31,
     1999.

     Revenue  recognition  - License  revenue  is  recognized  ratably  over the
     development  period of the Hextend product which was originally  determined
     to be  two  years.  Milestone  payments  are  recognized  as  revenue  when
     milestones have been achieved. Royalty and license fees related to sales of
     a certain blood plasma volume expander product are generally  recognized in
     the quarter  subsequent to the quarter in which the related sales occur and
     upon    receipt    of    a    sales    report    from    the    third-party
     manufacturer/distributor of the product (see note 3).

     Research  and  development  costs are  expensed  when  incurred and consist
     principally  of salaries,  payroll  taxes,  research and  laboratory  fees,
     hospital  and  consultant  fees  related to the  clinical  trials,  and the
     Company's PentaLyte solution for use in human clinical trials.

     Stock-based  compensation - The Company accounts for stock-based  awards to
     employees  using the intrinsic  value method in accordance  with Accounting
     Principles Board Opinion No. 25, Accounting for Stock Issued to Employees.

     Stock split - In October 1997, the Company  effected a three-for-one  split
     of its common shares. All share and per share amounts have been restated to
     reflect the stock split for all periods presented.

     Net loss per share - Basic earnings (loss) per share excludes  dilution and
     is computed by dividing net income (loss) by the weighted average number of
     common shares  outstanding  during the period.  Diluted earnings (loss) per
     share reflects the potential  dilution from  securities and other contracts
     which are exercisable or convertible  into common shares.  Diluted earnings
     (loss) per

                                       41






     share for the year ended  December 31, 1999,  the six months ended December
     31, 1998 and the years ended June 30, 1998 and 1997 exclude any effect from
     such  securities as their  inclusion  would be  antidilutive.  As a result,
     there is no difference  between basic and diluted  calculations of loss per
     share for all periods presented.

     Comprehensive  Income (Loss) -  Comprehensive  income  (loss)  includes the
     changes in net assets during the period from nonowner  sources  reported by
     major components and as a single total. Comprehensive income (loss) was the
     same as net loss for all periods  presented.  The  Company's  comprehensive
     income (loss) was the same as net loss.

     Segment  information  - The  Company  operates  in the  single  segment  of
     producing  aqueous based synthetic  solutions used in medical  applications
     and is currently in the development stage of this segment.

     Recently  issued  accounting  standards  -  In  June  1998,  the  Financial
     Accounting  Standards  Board issued  Statement of Accounting  Standards No.
     133, "Accounting for Derivative  Instruments and Hedging Activities," (SFAS
     133) which  establishes  accounting and reporting  standards for derivative
     instruments  and for hedging  activities.  SFAS 133 requires  that entities
     recognize all derivatives as either assets or liabilities and measure those
     instruments  at fair value.  Adoption of this statement will not impact the
     Company's  financial  position,  results of operations  or cash flows.  The
     Company is currently required to adopt SFAS 133 in the first quarter of the
     fiscal year ending December 31, 2001.

3.   LICENSE AGREEMENT

     In April 1997, BioTime and Abbott  Laboratories  ("Abbott") entered into an
     Exclusive License  Agreement (the "License  Agreement") under which BioTime
     granted to Abbott an exclusive  license to  manufacture  and sell BioTime's
     proprietary  blood plasma volume  expander  solution  Hextend in the United
     States and Canada for certain therapeutic uses.

     Under the License  Agreement,  Abbott has agreed to pay the Company license
     fees based upon  achievement of specified  milestones and product sales. As
     of December 31, 1999, $2,500,000 of the license fees for the achievement of
     milestones  has been  earned  and paid.  Up to  $37,500,000  of  additional
     license fees will be payable  based upon annual net sales of Hextend at the
     rate of 10% of annual net sales if annual net sales exceed  $30,000,000  or
     5% if annual net sales are between  $15,000,000 and  $30,000,000.  Abbott's
     obligation  to pay  license  fees on sales of  Hextend  will  expire on the
     earlier of January  1, 2007 or, on a country  by  country  basis,  when all
     patents  protecting  Hextend in the applicable  country expire or any third
     party obtains certain  regulatory  approvals to market a generic equivalent
     product in that country.

     In addition to the license  fees,  Abbott will pay the Company a royalty on
     annual net sales of Hextend. The royalty rate will be 5% plus an additional
     .22% for each increment of $1,000,000

                                       42






     of  annual  net  sales,  up to a  maximum  royalty  rate of  36%.  Abbott's
     obligation  to pay  royalties on sales of Hextend will expire in the United
     States or Canada  when all  patents  protecting  Hextend in the  applicable
     country expire and any third party obtains certain regulatory  approvals to
     market a generic equivalent product in that country.

     Abbott has agreed that the Company may convert Abbott's  exclusive  license
     to a non-exclusive license or may terminate the license outright if certain
     minimum  sales and royalty  payments are not met. In order to terminate the
     license outright,  BioTime would pay a termination fee in an amount ranging
     from the  milestone  payments  made by Abbott  to an amount  equal to three
     times  prior  year net  sales,  depending  upon  when  termination  occurs.
     Management believes that the probability of payments of any termination fee
     by the Company is remote.

4.   SHAREHOLDERS' EQUITY

     During  June  1994,  the  Board  of  Directors  authorized   management  to
     repurchase up to 200,000 of the Company's  common shares at market price at
     the time of purchase.  A total of 90,800 shares have been  repurchased  and
     retired. No shares have been repurchased since August 28, 1995.

     During  September 1995, the Company entered into an agreement for financial
     advisory services with Greenbelt Corp., a corporation  controlled by Alfred
     D.  Kingsley  and  Gary K.  Duberstein,  who are also  shareholders  of the
     Company.  Under the agreement,  the Company issued to the financial advisor
     warrants to purchase  311,276  common shares at a price of $1.93 per share,
     and the Company  agreed to issue  additional  warrants to purchase up to an
     additional  622,549  common  shares at a price  equal to the greater of (a)
     150% of the  average  market  price of the common  shares  during the three
     months prior to issuance and (b) $2 per share. The additional warrants were
     issued in equal quarterly  installments  over a two year period,  beginning
     October 15, 1995.  The exercise price and number of common shares for which
     the warrants may be exercised are subject to adjustment to prevent dilution
     in  the   event   of  a   stock   split,   combination,   stock   dividend,
     reclassification of shares, sale of assets,  merger or similar transaction.
     The warrants are exercisable at the following prices:  466,912 at $1.93 per
     share; 77,818 at $2.35 per share;77,818 at $9.65 per share; 77,818 at $9.42
     per  share;  77,818 at $10.49 per  share;  77,818 at $15.74 per share;  and
     77,818 at  $13.75  per  share.  The total  value of these  warrants  at the
     agreement  date,  estimated to be $300,000,  was capitalized in fiscal 1996
     and was amortized over the two year term of the agreement.

     During  September  1996,  the Company  entered  into an  agreement  with an
     individual  to act as an advisor to the Company.  In exchange for services,
     as  defined,  to be rendered by the advisor  through  September  1999,  the
     Company issued  warrants,  with five year terms, to purchase 124,510 common
     shares at a price of $6.02 per  share.  The  exercise  price and  number of
     common  shares  for which the  warrants  may be  exercised  are  subject to
     adjustment to prevent dilution in the event of a stock split,  combination,
     stock  dividend,  reclassification  of shares,  sale of  assets,  merger or
     similar transaction. Warrants for 77,775 common shares vested and became

                                       43






     exercisable and transferable when issued; warrants for the remaining 46,735
     common shares vested ratably through September 1997 and became  exercisable
     and transferable as vesting  occurred.  The estimated value of the services
     to be  performed  is $60,000  and that amount has been  capitalized  and is
     being amortized over the three year term of the agreement.

     On February 5, 1997, the Company  completed a subscription  rights offering
     raising $5,662,180, through the sale of 849,327 common shares.

     During  April  1998,  the Company  entered  into a new  financial  advisory
     services  agreement  with  Greenbelt  Corp.  The agreement  provides for an
     initial payment of $90,000 followed by an advisory fee of $15,000 per month
     that will be paid  quarterly.  The agreement will expire on March 31, 2000,
     but either party may  terminate  the  agreement  earlier upon 30 days prior
     written notice.

     On March 9, 1999,  the Company  completed a  subscription  rights  offering
     raising $7,328,626, through the sale of 751,654 common shares.

     On July 15, 1999, the Company  established  the "BioTime  Endowment for the
     Study of Aging  and  Low-Temperature  Medicine"  (the  "Endowment")  at the
     University  of  California  at  Berkeley.  The  endowment  will support the
     research  activities of faculty and  researchers  in the areas of aging and
     low  temperature  medicine.  The initial term of the Endowment shall be for
     ten years,  and upon  review,  renewed  every five  years  thereafter.  The
     Company  funded  the  Endowment  with  $65,000 in cash and a warrant to the
     University to purchase 40,000 of the Company's  common shares for $0.50 per
     share.  On September  23, 1999,  the  University  of California at Berkeley
     exercised  its warrant for 40,000  shares.  The fair value of the  warrant,
     estimated to be  approximately  $552,000,  was  recognized  in research and
     development expenses during the quarter.

    5.   STOCK OPTION PLAN

     The Board of  Directors  of the Company  adopted the 1992 Stock Option Plan
     (the  "Plan")  during   September  1992.  The  Plan  was  approved  by  the
     shareholders  at the 1992  Annual  Meeting of  Shareholders  on December 1,
     1992. Under the Plan, as amended, the Company has reserved 1,800,000 common
     shares for issuance under options granted to eligible  persons.  No options
     may be granted  under the Plan more than ten years  after the date the Plan
     was adopted by the Board of  Directors,  and no options  granted  under the
     Plan may be exercised  after the  expiration  of ten years from the date of
     grant.

     Under the Plan,  options  to  purchase  common  shares  may be  granted  to
     employees,  directors and certain  consultants  at prices not less than the
     fair market value at date of grant for incentive stock options and not less
     than 85% of fair market value for other stock options. These options expire
     five to ten  years  from  the date of  grant  and may be fully  exercisable
     immediately,  or may be  exercisable  according to a schedule or conditions
     specified by the Board of Directors or the

                                       44






     Option  Committee.  During  the two  years  ended  June 30,  1998 and 1997,
     employees, including directors, were granted options to purchase 17,500 and
     123,000 common shares, respectively, and non-employees were granted options
     to purchase 14,500 and 165,000 common shares  respectively.  During the six
     months ended  December  31,  1998,  no options were granted to employees or
     directors,  and an  option to  purchase  20,000  shares  was  granted  to a
     consultant.  During  the year  ended  December  31,  1999,  employees,  and
     directors  were  granted  options to purchase  33,000  common  shares,  and
     non-employees  were  granted  options to  purchase  63,000  shares.  Of the
     options  granted to  consultants,  options to purchase 60,000 common shares
     vest upon achievement of certain milestones. The Company is amortizing into
     compensation the estimated fair value of such options ($450,845 at December
     31, 1999),  subject to remeasurement  at the end of each reporting  period,
     over the period  estimated to achieve such  milestones  (one to two years).
     Compensation  expense  recognized  on these  options  during the year ended
     December 31, 1999 was approximately $171,027. At December 31, 1999, 503,000
     shares were available for future grants under the Option Plan.


     Option activity under the Plan is as follows:



                                                                                                        Weighted
                                                                         Number of                  Average Exercise
                                                                           Shares                         Price
                                                                   ----------------------        -----------------------
                                                                                          
Outstanding, June 30, 1996 (537,000 exercisable at a
 weighted average price of $2.26)                                         690,000                         2.01
Granted (weighted average fair value of $6.83 per share)                  288,000                         7.37
Exercised                                                                 138,000                         2.37
Canceled                                                                     --                            --
                                                                   ----------------------        -----------------------
Outstanding, June 30, 1997 (678,000 exercisable at a
 weighted average price of $4.22)                                         840,000                         3.78
Granted (weighted average fair value of $18.25 per share)                  32,000                        16.56
Exercised                                                                 337,500                         2.63
Canceled                                                                     --                             --
                                                                   ----------------------        -----------------------
Outstanding, June 30, 1998 (411,500 exercisable at a
 weighted average price of $6.52)                                         534,500                         5.28
Granted (weighted average fair value of $2.50 per share)                   20,000                         7.25
Exercised                                                                  84,000                         4.71
Canceled                                                                     --                            --
                                                                   ----------------------        -----------------------



                                       45






                                                                                                        Weighted
                                                                         Number of                   Average Exercise
                                                                          Shares                          Price
                                                                   ----------------------        -----------------------
                                                                                                 
Outstanding, December 31, 1998 (440,500
exercisable at a weighted average price of $5.76)                         470,500                         $ 5.46
Granted (weighted average fair value of $9.52 per
share)                                                                     96,000                         11.81
Exercised                                                                  68,000                         12.65
Canceled                                                                     --                            --
                                                                   ----------------------        -----------------------
Outstanding, December 31, 1999                                            498,500                         6.98
                                                                   ----------------------        -----------------------


Additional  information regarding options outstanding as of December 31, 1999 is
as follows:



                                               Options Outstanding                                     Options Exercisable
                                          ------------------------------                       ------------------------------------
                                                  Weighted Avg.
                                                   Remaining
      Range of                 Number           Contractual Life         Weighted Avg.            Number            Weighted Avg.
  Exercise Prices            Outstanding             (yrs)               Exercise Price         Exercisable         Exercise Price
- --------------------     -----------------    --------------------    --------------------     ---------------     ----------------
                                                                                                   
     $1.00-1.13                180,000                2.44                   $1.09                  180,000             $1.09
     6.00-8.81                 86,500                 3.15                    6.23                  86,500               6.23
    10.33-13.00                210,000                4.65                   11.17                  150,000             10.94
       18.25                   22,000                 2.90                   18.25                  22,000              18.25
                          -----------------                                                    ---------------
    $1.0-$18.25                498,500                3.51                   $6.98                  438,500             $6.33


     As discussed  in Note 1, the Company  continues to account for its employee
     stock-based  awards using the  intrinsic  value method in  accordance  with
     Accounting  Principles  Board  No.  25,  Accounting  for  Stock  Issued  to
     Employees and its related  interpretations.  Accordingly,  no  compensation
     expense has been recognized in the financial  statements for employee stock
     arrangements.  Options to  purchase  204,500  shares  were  outstanding  to
     employees at December 31, 1999.  Options granted to non-employees have been
     recognized in the financial  statements at the estimated  fair value of the
     services  or benefit  provided.  Options to  purchase  294,000  shares were
     outstanding to non-employees at December 31, 1999.

     Statement  of  Financial  Accounting  Standards  No.  123,  Accounting  for
     Stock-Based  Compensation,  (SFAS 123) requires the disclosure of pro forma
     net income and  earnings  per share had the Company  adopted the fair value
     method as of the  beginning of fiscal 1995.  Under SFAS 123, the fair value
     of stock-based awards to employees is calculated through the use of

                                       46






     option pricing  models,  even though such models were developed to estimate
     the fair  value of freely  tradable,  fully  transferable  options  without
     vesting  restrictions,  which significantly differ from the Company's stock
     option awards. These models also require subjective assumptions,  including
     future stock price volatility and expected time to exercise,  which greatly
     affect the calculated  values.  The Company's  calculations were made using
     the Black-Scholes  option pricing model with the following weighted average
     assumptions:  expected  life,  24  - 60  months  following  vesting;  stock
     volatility, 84.7%, 83.87%, and 95.00% for the year ended December 31, 1999,
     and the  years  ended  June 30,  1998 and  1997,  respectively;  risk  free
     interest rates,  5.99%,  5.64%,  and 5.96%, for the year ended December 31,
     1999,  and the years  ended June 30,  1998 and 1997,  respectively;  and no
     dividends during the expected term. The Company's calculations are based on
     a multiple option valuation approach and forfeitures are recognized as they
     occur. If the computed fair values for the year ended December 31, 1999 and
     the years ended June 30,  1998,  1997 awards had been  amortized to expense
     over the vesting  period of the awards,  pro forma net loss would have been
     $5,760,878 ($0.54 per share) in 1999, $3,665,915 ($0.37 per share) in 1998,
     and  $3,983,890  ($0.44 per share) in 1997. No employee  options  vested or
     were granted in the six months ended  December  31,  1998.  Therefore,  pro
     forma net loss is the same as  recorded  net loss for the six months  ended
     December 31,  1998.  The impact of  outstanding  non-vested  stock  options
     granted  prior to 1996 has been  excluded  from the pro forma  calculation;
     accordingly,  the year ended  December  31,  1999,  the six  months  ending
     December  31,  1998,  and the years  ended  June 30,  1998,  1997 pro forma
     adjustments are not indicative of future period pro forma adjustments, when
     the calculation will apply to all applicable stock options.

6.   COMMITMENTS AND CONTINGENCIES

     The  Company  has  employment  agreements  with six  officers  who are also
     shareholders,  for five- year terms,  five of which expire in June 2001 and
     one which expires in April 2002.  All provide for base salaries with annual
     increases.  The  agreements  also  provide  that  in the  event  any of the
     officer's  employment  terminates,  voluntarily or  involuntarily,  after a
     change in control of the Company  through an acquisition of voting stock or
     assets,  or a merger or consolidation  with another  corporation or entity,
     the executive  officers will be entitled to severance payments equal to the
     greater of (a) 2.99 times the average annual compensation for the preceding
     five years or (b) the balance of the base salary for the unexpired  portion
     of the term of the employment agreement.  These  officers/shareholders have
     signed intellectual  property agreements with the Company as a condition of
     their employment.

     The  Company  occupies  its office and  laboratory  facility  in  Berkeley,
     California  under a lease that will expire on March 31,  2004.  The Company
     presently occupies  approximately 8,200 square feet of space with a monthly
     rent of $10,000.  The rent will increase  annually by the greater of 3% and
     the increase in the local consumer price index, subject to a maximum annual
     increase of 7%. Rent expense  totaled  $91,796 for the year ended  December
     31,  1999,  $32,694 for the six month  period  ending  December  31,  1998,
     $62,990,  and  $59,376,  for each of the two years  ended June 30, 1998 and
     1997,  respectively;  and  cumulatively,   $414,182  for  the  period  from
     inception to December 31, 1999.

                                       47








     7.  INCOME TAXES

     The primary components of the net deferred tax asset are:




                                                   Year Ended              Six MonthsEnded          Year Ended
                                                  December 31,              December 31,             June 30,
                                                      1999                      1998                  1998
                                              ---------------------     --------------------    -----------------
                                                                                      
Deferred Tax Asset:
NOL Carryforwards                                $       9,246,868        $       7,256,851       $    5,125,447
Research & Development Credits                             788,920                  622,516              444,398
Other, net                                                 514,618                  320,790              327,492
                                              ---------------------     --------------------    -----------------
                   Total                                10,550,406                8,200,157            5,897,337
Valuation allowance                                    (10,550,406)              (8,200,157)          (5,897,337)
                                              ---------------------     --------------------    -----------------
Net deferred tax asset                           $           -0-          $           -0-         $        -0-
                                              =====================     ====================    =================


     No tax benefit has been recorded  through  December 31, 1999 because of the
     net operating losses incurred and a full valuation  allowance  provided.  A
     valuation  allowance is provided  when it is more likely than not that some
     portion  of the  deferred  tax  asset  will not be  realized.  The  Company
     established a 100% valuation  allowance at December 31, 1999,  December 31,
     1998 and June 30,  1998 due to the  uncertainty  of  realizing  future  tax
     benefits from its net operating loss  carryforwards  and other deferred tax
     assets.

     As of December 31, 1999, the Company has net operating  loss  carryforwards
     of  approximately  $23,000,000  for federal and  $11,000,000  for state tax
     purposes,  which  begin to  expire  during  fiscal  years  2007  and  2000,
     respectively.

     Internal  Revenue Code Section 382 places a  limitation  (the  "Section 382
     Limitation")  on the  amount of taxable  income  which can be offset by net
     operating loss ("NOL")  carryforwards  after a change in control (generally
     greater than 50% change in ownership) of a loss corporation. California has
     similar rules. Generally, after a control change, a loss corporation cannot
     deduct NOL  carryforwards  in excess of the Section 382 Limitation.  Due to
     these  "change in  ownership"  provisions,  utilization  of the NOL and tax
     credit carryforwards may be subject to an annual limitation regarding their
     utilization against taxable income in future periods.

                                       48






8.   RELATED PARTY TRANSACTIONS

     During the year ended  December 31, 1999, the six months ended December 31,
     1998  and the  years  ended  June 30,  1998  and1997,  fees for  consulting
     services of $19,125, $15,649, $33,500, and $36,000, respectively, were paid
     to a member of the Board of Directors.

9.   QUARTERLY RESULTS (UNAUDITED)

     Summarized  unaudited  results of  operations  for each quarter of the year
     ended  December  31, 1999,  the six months ended  December 31, 1998 and the
     fiscal year ended June 30, 1998, are as follows:



                                                                                             Fourth            Total
                              First Quarter      Second Quarter       Third Quarter         Quarter            Year
                            ------------------ ------------------- -------------------  ---------------- -----------------
Fiscal Year Ended
December 31, 1999

- ---------------------------
                                                                                          
Revenue                          $437,500           $600,000               --                  --           $1,037,500
Net Loss                         $786,939           $990,594           $2,254,588          $1,447,763       $5,479,884
Net Loss per share                 $.08               $.09                $.21                $.14             $.51





                                                                                             Fourth            Total
                              First Quarter      Second Quarter       Third Quarter         Quarter            Year
                            ------------------ ------------------- -------------------  ---------------- -----------------
Six Months Ended
December 31, 1998

- ---------------------------
                                                                                           
Revenue                           $125,000           $125,000                                                  $250,000
Net Loss                        $1,137,742           $956,736                                                $2,094,478
Net Loss per share                 $.11                $.10                                                     $.21





                                                                                             Fourth            Total
                              First Quarter      Second Quarter       Third Quarter         Quarter            Year
                            ------------------ ------------------- -------------------  ---------------- -----------------
Fiscal Year Ended June

30, 1998

- ---------------------------
                                                                                          
Revenue                          $125,000           $525,000             $125,000            $375,000       $1,150,000
Net Loss                         $982,621           $637,177           $1,071,538           $762,010        $3,453,346
Net Loss per share                 $.10               $.06                $.11                $.08             $.35




                                       49




Item 9.   Changes in and Disagreements with Accountants on Accounting and
          ---------------------------------------------------------------
          Financial Disclosure
          --------------------

     Not applicable.







                                       50






                                    PART III

Item 10.   Directors and Executive Officers of the Registrant.

Directors and Executive Officers

         The names  and ages of the  directors  and  executive  officers  of the
Company are as follows:

         Paul Segall, Ph.D., 57, is the Chairman and Chief Executive Officer and
has served as a director of the Company since 1990. Dr. Segall  received a Ph.D.
in Physiology from the University of California at Berkeley in 1977.

         Ronald S. Barkin,  54, became President of BioTime during October 1997,
after serving as Executive Vice President  since April 1997. Mr. Barkin has been
a director of the Company since 1990.  Before  becoming an executive  officer of
the Company, Mr. Barkin practiced civil and corporate law for more than 25 years
after getting a J.D. from Boalt Hall, University of California at Berkeley.

         Victoria  Bellport,  34,  is  the  Chief  Financial  Officer  and  Vice
President  and has been a director  of the  Company  since  1990.  Ms.  Bellport
received a B.A. in Biochemistry from the University of California at Berkeley in
1988.

         Hal  Sternberg,  Ph.D.,  46, is the Vice  President of Research and has
been a  director  of the  Company  since  1990.  Dr.  Sternberg  was a  visiting
scientist  and research  Associate at the  University  of California at Berkeley
from 1985-1988,  where he supervised a team of researchers  studying Alzheimer's
Disease.  Dr.  Sternberg  received his Ph.D.  from the University of Maryland in
Biochemistry in 1982.

         Harold  Waitz,  Ph.D.,  57, is the Vice  President of  Engineering  and
Regulatory  Affairs  and has been a  director  of the  Company  since  1990.  He
received his Ph.D.  in  Biophysics  and Medical  Physics from the  University of
California at Berkeley in 1983.

         Judith  Segall,  46, is the Vice President of Technology and Secretary,
and has been a director of the Company  from 1990  through  1994,  and from 1995
through the present date.  Ms. Segall  received a B.S. in Nutrition and Clinical
Dietetics from the University of California at Berkeley in 1989.

         Jeffrey B.  Nickel,  Ph.D.,  55,  joined the Board of  Directors of the
Company  during March 1997.  Dr.  Nickel is the  President of Nickel  Consulting
through which he has served as a consultant  to companies in the  pharmaceutical
and  biotechnology  industries  since  1990.  Prior to starting  his  consulting
business,  Dr.  Nickel  served in a number of  management  positions  for Syntex
Corporation  and Merck &  Company.  Dr.  Nickel  received  his Ph.D.  in Organic
Chemistry from Rutgers University in 1970.

         Milton H.  Dresner,  73,  joined the Board of  Directors of the Company
during  February 1998. Mr. Dresner is Co-Chairman of the Highland  Companies,  a
diversified organization engaged in the

                                       51






development and ownership of residential and industrial real estate. Mr. Dresner
serves as a  director  of  Avatar  Holdings,  Inc.,  a real  estate  development
company,  and  Childtime  Learning  Centers,  Inc. a child  care and  pre-school
education services company.

Executive Officers

         Paul Segall, Ronald S. Barkin, Victoria Bellport, Hal Sternberg, Harold
Waitz and Judith Segall are the only executive officers of BioTime.

         There are no family  relationships  among the  directors or officers of
the Company, except that Paul Segall and Judith Segall are husband and wife.

Directors' Meetings, Compensation and Committees of the Board

         The Board of Directors has an Audit Committee, the members of which are
Jeffrey  Nickel and Milton  Dresner.  The purpose of the Audit  Committee  is to
recommend the engagement of the corporation's independent auditors and to review
their  performance,  the plan, scope and results of the audit, and the fees paid
to the corporation's  independent auditors. The Audit Committee also will review
the Company's accounting and financial reporting procedures and controls and all
transactions between the Company and its officers,  directors,  and shareholders
who beneficially own 5% or more of the Common Shares.

         The Company does not have a standing Nominating Committee.  Nominees to
the Board of Directors are selected by the entire Board.

         The Board of Directors has a Stock Option  Committee  that  administers
the  Company's  1992  Stock  Option  Plan and  makes  grants of  options  to key
employees,  consultants,  scientific  advisory  board  members  and  independent
contractors of the Company, but not to officers or directors of the Company. The
members of the Stock Option  Committee  are Paul Segall,  Ronald S. Barkin,  and
Victoria Bellport. The Stock Option Committee was formed during September 1992.

          During the fiscal year ended December 31, 1999, the Board of Directors
met nine times. No director attended fewer than 75% of the meetings of the Board
or any committee on which they served.

          Directors of the Company who are not  employees  receive an annual fee
of $20,000,  which may be paid in cash or in Common  Shares,  at the election of
the director. During the year ended December 31, 1999, each director who was not
a Company  employee also  received  options to purchase  10,000  Common  Shares.
Directors of the Company and members of committees of the Board of Directors who
are  employees  of the Company are not  compensated  for serving as directors or
attending  meetings  of the Board or  committees  of the  Board.  Directors  are
entitled  to  reimbursements  for  their  out-of-pocket   expenses  incurred  in
attending  meetings of the Board or committees  of the Board.  Directors who are
employees  of the Company  are also  entitled  to receive  compensation  in such
capacity.

                                       52






Executive Compensation

          The Company has entered  into  five-year  employment  agreements  (the
"Employment  Agreements")  with Paul Segall,  the  Chairman and Chief  Executive
Officer;  Victoria Bellport,  the Chief Financial Officer;  Judith Segall,  Vice
President of Technology and Corporate Secretary;  Hal Sternberg,  Vice President
of Research;  and Harold Waitz,  Vice  President of  Engineering  and Regulatory
Affairs.  The  Employment  Agreements  will expire on December  31, 2000 but may
terminate  prior to the end of the term if the employee (1) dies, (2) leaves the
Company,  (3) becomes disabled for a period of 90 days in any 150 day period, or
(4) is  discharged  by the  Board of  Directors  for  failure  to carry  out the
reasonable policies of the Board, persistent  absenteeism,  or a material breach
of a covenant.  Under the  Employment  Agreements,  the  executive  officers are
presently  receiving  annual  salaries of $163,000,  and will receive a one-time
cash bonus of $25,000 if the  Company  receives  at least  $1,000,000  of equity
financing from a pharmaceutical company.

          In the event of the executive  officer's  death during the term of his
or her Employment  Agreement,  the Company will pay his or her estate his or her
salary for a period of six month or until  December  31, 2000,  whichever  first
occurs.  In the  event  that  the  executive  officer's  employment  terminates,
voluntarily or  involuntarily,  after a change in control of the Company through
an acquisition of voting stock,  an  acquisition of the Company's  assets,  or a
merger or consolidation of the Company with another  corporation or entity,  the
executive  officers  will be entitled  to  severance  compensation  equal to the
greater  of (a)  2.99  times  his or her  average  annual  compensation  for the
preceding  five  years and (b) the  balance  of his or her base  salary  for the
unexpired portion of the term of his Employment Agreement.

         The Company  also  entered  into a similar  employment  agreement  with
Ronald S. Barkin, which commenced on April 1, 1997 and expires on March 31, 2002

          Each  executive  officer has also  executed an  Intellectual  Property
Agreement  which  provides  that the  Company  is the  owner  of all  inventions
developed by the executive officer during the course of his or her employment.

          The following  table  summarizes  certain  information  concerning the
compensation paid to the five most highly compensated  executive officers during
the last three full fiscal years and the six months ended December 31, 1998.

                                       53







                                            SUMMARY COMPENSATION TABLE

                                                     Annual Compensation                  Long-Term Compensation
                                                     -------------------                  ----------------------
Name and Principal Position                 Year Ended                 Salary($)        Bonus    Stock Options (Shares)
- ---------------------------                 ----------                 ---------        -----    ----------------------
                                                                                          
Paul Segall                                 December 31, 1999          $163,000
  Chairman and Chief Executive Officer      December 31, 1998*         $ 49,500
                                            June 30, 1998              $ 95,500         $50,000           __
                                            June 30, 1997              $ 90,583          __               __

Hal Sternberg

   Vice President of Research               December 31, 1999          $163,000
                                            December 31, 1998*         $ 49,500
                                            June 30, 1998              $ 95,500         $25,000           __
                                            June 30, 1997              $ 90,583         $25,000           __

Harold Waitz                                December 31, 1999          $163,000
  Vice President of Engineering             December 31, 1998*         $ 49,500
                                            June 30, 1998              $ 95,500         __                __
                                            June 30, 1997              $ 90,583         $50,000           __

Victoria Bellport                           December 31, 1999          $163,000
   Vice President and                       December 31, 1998*         $ 49,500
    Chief Financial Officer                 June 30, 1998              $ 95,500         $25,000           __
                                            June 30, 1997              $ 90,583         $25,000           __

Judith Segall                               December 31, 1999          $163,000
   Vice President and Corporate Secretary   December 31, 1998*         $ 49,500
                                            June 30, 1998              $ 95,500         $25,000           __
                                            June 30, 1997              $ 90,583         $25,000           __
<FN>
*During 1998,  the Company  changed its fiscal year end from June 30 to December
31. The  amounts of base salary  shown in the table for the year ended  December
31, 1998 reflect a short (six month) fiscal year.
</FN>


Insider Participation in Compensation Decisions

         The Board of Directors does not have a standing Compensation Committee.
Instead, the Board of Directors as a whole approves all executive  compensation.
All of the executive officers of the Company serve on the Board of Directors but
do not vote on  matters  pertaining  to their own  personal  compensation.  Paul
Segall  and  Judith  Segall do not vote on matters  pertaining  to each  other's
compensation.

Stock Options

         None of the five most  highly  compensated  executive  officers  of the
Company held any stock options during the fiscal year ended December 31, 1999.

                                       54






Certain Relationships and Related Transactions

          During  the  year  ended  December  31,  1999,  $19,125  in  fees  for
consulting  services  was paid to  Jeffrey B.  Nickel,  a member of the Board of
Directors.

         During  September  1995,  the Company  entered  into an  agreement  for
financial  advisory  services with Greenbelt Corp., a corporation  controlled by
Alfred D.  Kingsley and Gary K.  Duberstein,  who are also  shareholders  of the
Company.  Under this  agreement  the  Company  issued to the  financial  advisor
warrants to purchase  311,276  Common Shares at a price of $1.93 per share,  and
the Company agreed to issue additional  warrants to purchase up to an additional
622,549 Common Shares at a price equal to the greater of (a) 150% of the average
market price of the Common  Shares during the three months prior to issuance and
(b) $2 per  share.  The  additional  warrants  were  issued  in equal  quarterly
installments  over a two year period,  beginning  October 15, 1995. The exercise
price and number of Common  Shares for which the warrants  may be exercised  are
subject  to  adjustment  to  prevent  dilution  in the  event of a stock  split,
combination, stock dividend,  reclassification of shares, sale of assets, merger
or similar  transaction.  The warrants are exercisable at the following  prices:
466,912  at $1.93 per  share;  77,818 at $2.35  per  share;  77,818 at $9.65 per
share;  77,818 at $9.42 per share;  77,818 at $10.49 per share; 77,818 at $15.74
per share;  and 77,818 at $13.75  per share.  The number of shares and  exercise
prices  shown  have  been  adjusted  for  the  Company's   subscription   rights
distributions  during  January 1997 and February 1999 and the payment of a stock
dividend during October 1997.

         Under the agreement,  upon the request of Greenbelt  Corp., the Company
will file a  registration  statement to register  the  warrants  and  underlying
Common Shares for sale under the  Securities Act of 1933, as amended (the "Act")
and  applicable  state  securities or "Blue Sky" laws. The Company will bear the
expenses of  registration,  other than any  underwriting  discounts  that may be
incurred by Greenbelt  Corp. in connection with a sale of the warrants or common
shares.  The  Company  shall  not be  obligated  to  file  more  than  two  such
registration  statements,  other  than  registration  statements  on  Form  S-3.
Greenbelt  Corp.  also is entitled to include  warrants and common shares in any
registration  statement  filed by the Company to register  other  securities for
sale under the Act.

         During April 1998,  the Company  entered into a new financial  advisory
services  agreement  with  Greenbelt  Corp.  The new  agreement  provides for an
initial payment of $90,000 followed by an advisory fee of $15,000 per month that
will be paid quarterly.  The agreement will expire on March 31, 2000, but either
party may terminate the agreement earlier upon 30 days prior written notice.

         The Company has agreed to reimburse  Greenbelt Corp. for all reasonable
out-of-pocket  expenses  incurred in connection with its engagement as financial
advisor,  and  to  indemnify  Greenbelt  Corp.  and  the  officers,  affiliates,
employees, agents, assignees, and controlling person of Greenbelt Corp. from any
liabilities  arising out of or in connection with actions taken on behalf of the
Company under the agreement.

                                       55






Item 12.   Security Ownership of Certain Beneficial Owners and Management.

         The  following  table  sets  forth  information  as of March  21,  2000
concerning  beneficial  ownership of Common Shares by each shareholder  known by
the Company to be the  beneficial  owner of 5% or more of the  Company's  Common
Shares,  and  the  Company's  executive  officers  and  directors.   Information
concerning  certain  beneficial  owners of more than 5% of the Common  Shares is
based upon information disclosed by such owners in their reports on Schedule 13D
or Schedule 13G.

                                                   Number of         Percent of
                                                             Shares              Total
                                                            ---------         ----------
                                                                        
Alfred D. Kingsley (1)
Gary K. Duberstein
Greenbelt Corp.
Greenway Partners, L.P.
Greenhouse Partners, L.P.
  277 Park Avenue, 27th Floor

  New York, New York 10017                                  1,365,642            11.6

Paul and Judith Segall (2)                                    745,408             6.8

Harold D. Waitz (3)                                           524,166             4.8

Hal Sternberg                                                 502,043             4.6

Victoria Bellport                                             205,978             1.9

Ronald S. Barkin (4)                                          192,761             1.7

Jeffrey B. Nickel (5)                                          25,000              *

Milton H. Dresner (6)                                          29,063              *

All officers and directors
as a group (8 persons)(4)(5)                                2,224,419            20.1%
- ---------------------------
<FN>
*        Less than 1%

(1)      Includes  933,825 Common Shares issuable upon the exercise of certain
         warrants owned  beneficially by Greenbelt Corp and 59,730 Common Shares
         owned by Greenbelt Corp. Mr. Kingsley and Mr.  Duberstein may be deemed
         to   beneficially   own  the  warrant  shares  that   Greenbelt   Corp.
         beneficially  owns.  Includes  90,750  Common  Shares owned by Greenway
         Partners,  L.P.  Greenhouse  Partners,  L.P. is the general  partner of
         Greenway  Partners,  L.P. and Mr.  Kingsley and Mr.  Duberstein are the
         general  partners of Greenhouse  Partners,  L.P.  Greenhouse  Partners,
         L.P., Mr. Kingsley and Mr. Duberstein may be deemed to beneficially own
         the Common Shares that Greenway Partners, L.P.
</FN>


                                       56





[FN]
         beneficially  owns.  Includes 270,442 Common Shares owned solely by Mr.
         Kingsley,  as to which Mr. Duberstein disclaims  beneficial  ownership.
         Includes  10,895  Common Shares owned solely by Mr.  Duberstein,  as to
         which Mr. Kingsley disclaims beneficial ownership.

(2)      Includes 543,245 shares held of record by Paul Segall and 202,163
         shares held of record by Judith Segall.

(3)      Includes 2,100 shares held for the benefit of Dr. Waitz's minor
         children.

(4)      Includes 135,000 Common Shares issuable upon the exercise of certain
         options.

(5)      Includes 25,000 Common Shares issuable upon the exercise of certain
         options.

(6)      Includes 10,000 Common Shares issuable upon the exercise of certain
         stock options. Does not include Common Shares that Mr. Dresner may
         acquire in lieu of cash payment of his director's fees.
</FN>

      COMPLIANCE WITH SECTION 16(a) OF THE SECURITIES EXCHANGE ACT OF 1934

         Section 16(a) of the  Securities  Exchange Act of 1934, as amended (the
"Exchange  Act"),  requires the Company's  directors and executive  officers and
persons  who own  more  than ten  percent  (10%)  of a  registered  class of the
Company's equity securities to file with the Securities and Exchange  Commission
(the "SEC") initial  reports of ownership and reports of changes in ownership of
Common Shares and other equity  securities of the Company.  Officers,  directors
and greater than ten percent beneficial owners are required by SEC regulation to
furnish the Company with copies of all reports they file under Section 16(a).

         To the Company's knowledge, based solely on its review of the copies of
such reports furnished to the Company and written  representations that no other
reports were required,  all Section 16(a) filing requirements  applicable to its
officers, directors and greater than ten percent beneficial owners were complied
with during the fiscal year ended December 31, 1999.

                                       57






                                     PART IV

Item 14.   Exhibits, Financial Statement Schedules and Reports on Form 8-K

(a-1) Financial Statements.

The following financial statements of BioTime, Inc. are filed in the Form 10-K:

                                                                     Page
                                                                     ----

Independent Auditors' Report                                          33

Balance Sheets As of December 31, 1999
and December 31, 1998                                                 34

Statements of Operations For the Year Ended December 31, 1999,
the Six Months Ended December 31, 1998, the Two Years in the
Period Ended June 30, 1998 and the Period From Inception
(November 30, 1990) to December 31, 1999                              35

Statements of Shareholders' Equity For the
Year Ended December 31, 1999, the Six Months
Ended December 31, 1998, the Two Years in the Period
Ended June 30, 1998 and the Period From Inception
(November 30, 1990) to December 31, 1999                             36-37

Statements of Cash Flows For the
Year Ended December 31, 1999, the Six Months Ended
December 31, 1998, the Two Years in the Period
Ended June 30, 1998 and the Period From Inception

(November 30, 1990) to December 31, 1999                             38-39

Notes to Financial Statements                                        40-50




                                       58






(a-3) Exhibits.

Exhibit
Numbers           Description
- -------           -----------

 3.1     Articles of Incorporation, as Amended.+

 3.3     By-Laws, As Amended.#

 4.1     Specimen of Common Share Certificate.+

10.1     Lease  Agreement  dated July 1, 1994 between the Registrant and Robert
         and Norah  Brower,  relating  to  principal  executive  offices of the
         Registrant.*

10.2     Employment Agreement dated June 1, 1996 between the Company and
         Paul Segall.++

10.3     Employment Agreement dated June 1, 1996 between the Company and
         Hal Sternberg.++

10.4     Employment Agreement dated June 1, 1996 between the Company and
         Harold Waitz.++

10.5     Employment Agreement dated June 1, 1996 between the Company and
         Judith Segall.++

10.6     Employment Agreement dated June 1, 1996 between the Company and
         Victoria Bellport.++

10.7     Intellectual Property Agreement between the Company and Paul Segall.+

10.8     Intellectual Property Agreement between the Company and Hal Sternberg.+

10.9     Intellectual Property Agreement between the Company and Harold Waitz.+

10.10    Intellectual Property Agreement between the Company and Judith Segall.+

10.11    Intellectual Property Agreement between the Company and
         Victoria Bellport.+

10.12    Agreement between CMSI and BioTime Officers Releasing Employment
         Agreements, Selling Shares, and Transferring Non-Exclusive License.+

10.13    Agreement for Trans Time, Inc. to Exchange CMSI Common Stock for
         BioTime, Inc. Common Shares.+

10.14    1992 Stock Option Plan, as amended.##

10.15    Employment Agreement dated April 1, 1997 between the Company and
         Ronald S. Barkin.^


                                       59




10.16    Intellectual Property Agreement between the Company and
         Ronald S. Barkin.^

10.17    Addenda to Lease Agreement between the Company and Donn Logan.**

10.18    Amendment to Employment Agreement between the Company and
         Paul Segall.^^

10.19    Amendment to Employment Agreement between the Company and
         Hal Sternberg.^^

10.20    Amendment to Employment Agreement between the Company and
         Harold Waitz.^^

10.21    Amendment to Employment Agreement between the Company and
         Judith Segall.^^

10.22    Amendment to Employment Agreement between the Company and
         Victoria Bellport.^^

10.23    Amendment to Employment Agreement between the Company and
         Ronald S. Barkin.^^

10.24    Exclusive License Agreement between Abbott Laboratories and
         BioTime, Inc.(Portions of this exhibit have been omitted pursuant to a
         request for confidential treatment).###

10.25    Modification of Exclusive License Agreement between Abbott Laboratories
         and BioTime, Inc.(Portions of this exhibit have been omitted pursuant
         to a request for confidential treatment).^^^

23.1     Consent of Deloitte & Touche LLP**

27       Financial Data Schedule**

+Incorporated  by reference to the Company's Form 10-K for the fiscal year ended
June 30, 1998.

+ Incorporated by reference to  Registration  Statement on Form S-1, File Number
33-44549 filed with the Securities and Exchange Commission on December 18, 1991,
and Amendment No. 1 and  Amendment No. 2 thereto filed with the  Securities  and
Exchange Commission on February 6, 1992 and March 7, 1992, respectively.

# Incorporated by reference to  Registration  Statement on Form S-1, File Number
33-48717 and  Post-Effective  Amendment No. 1 thereto filed with the  Securities
and Exchange Commission on June 22, 1992, and August 27, 1992, respectively.

* Incorporated by reference to the Company's Form 10-K for the fiscal year ended
June 30, 1994.

++  Incorporated  by  reference to the  Company's  Form 10-K for the fiscal year
ended June 30, 1996.

^  Incorporated  by reference to the  Company's  Form 10-Q for the quarter ended
March 31, 1997.

## Incorporated by reference to Registration  Statement on Form S-8, File Number
333-30603 filed with the Securities and Exchange Commission on July 2, 1997.

^ ^  Incorporated  by reference to the Company's Form 10-Q for the quarter ended
March 31, 1999.

### Incorporated by reference to the Company's Form 8-K, filed April 24, 1997.

                                       60






^^^  Incorporated  by reference to the Company's Form 10-Q for the quarter ended
June 30, 1999.

** Filed herewith.

(b) Reports on Form 8-K

The  Company  did not file any  reports of Form 8-K for the three  months  ended
December 31, 1999.

                                       61






                                   SIGNATURES

         Pursuant to the  requirements  of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the Registrant has duly caused this report on Form 10-K to
be signed on its behalf by the  undersigned,  thereunto  duly  authorized on the
28th day of March 2000.

                                              BIOTIME, INC.


                                           By: /s/Paul E. Segall
                                              ------------------
                                              Paul E. Segall, Ph.D.
                                              Chairman and Chief Executive
                                              Officer (Principal executive
                                               officer)



         Signature                          Title                                       Date
         ---------                          -----                                       ----
                                                                               
/s/Paul E. Segall
- ----------------------
Paul E. Segall, Ph.D.               Chairman, Chief Executive Officer and               March 28, 2000
                                    Director (Principal Executive Officer)

/s/Ronald S. Barkin
- ----------------------
Ronald S. Barkin                    President and Director                              March 28, 2000

/s/Harold D. Waitz
- ----------------------
Harold D. Waitz, Ph.D.              Vice President and Director                         March 28, 2000

/s/Hal Sternberg
- ----------------------
Hal Sternberg, Ph.D.                Vice President and Director                         March 28, 2000

/s/Victoria Bellport
- ----------------------
Victoria Bellport                   Chief Financial Officer and                         March 28, 2000
                                    Director (Principal Financial and
                                    Accounting Officer)

/s/Judith Segall
- ----------------------
Judith Segall                       Vice President, Corporate Secretary                 March 28, 2000
                                    and Director

- ----------------------
Jeffrey B. Nickel                   Director                                            March 28, 2000

- ----------------------
Milton H. Dresner                   Director                                            March 28, 2000



                                       62



Exhibit Index

Exhibit
Numbers           Description
- -------           -----------

 3.1     Articles of Incorporation, as Amended.+

 3.3     By-Laws, As Amended.#

 4.1     Specimen of Common Share Certificate.+

10.1     Lease  Agreement  dated July 1, 1994 between the Registrant and Robert
         and Norah  Brower,  relating  to  principal  executive  offices of the
         Registrant.*

10.2     Employment Agreement dated June 1, 1996 between the Company and
         Paul Segall.++

10.3     Employment Agreement dated June 1, 1996 between the Company and
         Hal Sternberg.++

10.4     Employment Agreement dated June 1, 1996 between the Company and
         Harold Waitz.++

10.5     Employment Agreement dated June 1, 1996 between the Company and
         Judith Segall.++

10.6     Employment Agreement dated June 1, 1996 between the Company and
         Victoria Bellport.++

10.7     Intellectual Property Agreement between the Company and Paul Segall.+

10.8     Intellectual Property Agreement between the Company and Hal Sternberg.+

10.9     Intellectual Property Agreement between the Company and Harold Waitz.+

10.10    Intellectual Property Agreement between the Company and Judith Segall.+

10.11    Intellectual Property Agreement between the Company and
         Victoria Bellport.+

10.12    Agreement between CMSI and BioTime Officers Releasing Employment
         Agreements, Selling Shares, and Transferring Non-Exclusive License.+

10.13    Agreement for Trans Time, Inc. to Exchange CMSI Common Stock for
         BioTime, Inc. Common Shares.+

10.14    1992 Stock Option Plan, as amended.##

10.15    Employment Agreement dated April 1, 1997 between the Company and
         Ronald S. Barkin.^


                                       63






10.16    Intellectual Property Agreement between the Company and
         Ronald S. Barkin.^

10.17    Addenda to Lease Agreement between the Company and Donn Logan.**

10.18    Amendment to Employment Agreement between the Company and
         Paul Segall.^^

10.19    Amendment to Employment Agreement between the Company and
         Hal Sternberg.^^

10.20    Amendment to Employment Agreement between the Company and
         Harold Waitz.^^

10.21    Amendment to Employment Agreement between the Company and
         Judith Segall.^^

10.22    Amendment to Employment Agreement between the Company and
         Victoria Bellport.^^

10.23    Amendment to Employment Agreement between the Company and
         Ronald S. Barkin.^^

10.24    Exclusive License Agreement between Abbott Laboratories and
         BioTime, Inc.(Portions of this exhibit have been omitted pursuant to a
         request for confidential treatment).###

10.25    Modification of Exclusive License Agreement between Abbott Laboratories
         and BioTime, Inc.(Portions of this exhibit have been omitted pursuant
         to a request for confidential treatment).^^^

23.1     Consent of Deloitte & Touche LLP**

27       Financial Data Schedule**

+Incorporated  by reference to the Company's Form 10-K for the fiscal year ended
June 30, 1998.

+ Incorporated by reference to  Registration  Statement on Form S-1, File Number
33-44549 filed with the Securities and Exchange Commission on December 18, 1991,
and Amendment No. 1 and  Amendment No. 2 thereto filed with the  Securities  and
Exchange Commission on February 6, 1992 and March 7, 1992, respectively.

# Incorporated by reference to  Registration  Statement on Form S-1, File Number
33-48717 and  Post-Effective  Amendment No. 1 thereto filed with the  Securities
and Exchange Commission on June 22, 1992, and August 27, 1992, respectively.

* Incorporated by reference to the Company's Form 10-K for the fiscal year ended
June 30, 1994.

++  Incorporated  by  reference to the  Company's  Form 10-K for the fiscal year
ended June 30, 1996.

^  Incorporated  by reference to the  Company's  Form 10-Q for the quarter ended
March 31, 1997.

## Incorporated by reference to Registration  Statement on Form S-8, File Number
333-30603 filed with the Securities and Exchange Commission on July 2, 1997.

^ ^  Incorporated  by reference to the Company's Form 10-Q for the quarter ended
March 31, 1999.

### Incorporated by reference to the Company's Form 8-K, filed April 24, 1997.

^^^  Incorporated  by reference to the Company's Form 10-Q for the quarter ended
June 30, 1999.

** Filed herewith.

(b) Reports on Form 8-K

The  Company  did not file any  reports of Form 8-K for the three  months  ended
December 31, 1999.

                                       64