EXHIBIT 10.5
                    ANNEX A TO EQUIPMENT SCHEDULE NO. 0001
               TO MASTER LEASE AGREEMENT DATED DECEMBER 31, 1998
 


ID            Equipment Description    Invoice #              Price
- -------------------------------------------------------------------------
                                                             
11059         Tecan #1                 115981                 $ 55,052.25
51262         Robot B                  114828, 115571         $ 55,387.48
51263         Robot C                  114829, 115572         $ 49,757.13
51264         Robot D                  114830, 115604         $ 49,757.13
51265         Robot E                  116625, 116912         $ 55,052.25
12445         377 DNA Sequencer        724320                 $ 76,216.49
              377XL DNA Sequencer
              Upgrade                  90170552               $ 14,250.00
12446         377 DNA Sequencer        728053                 $ 74,086.03
              377XL DNA Sequencer
              Upgrade                  90170552               $ 14,250.00
12447         377 DNA Sequencer        728053                 $ 74,086.03
              377XL DNA Sequencer
              Upgrade                  90170552               $ 14,250.00
51326         377 DNA Sequencer        724320                 $ 76,216.49
              377XL DNA Sequencer      90170552               $ 14,250.00
51328         377 DNA Sequencer        724320                 $ 76,216.49
              377XL DNA Sequencer
              Upgrade                  90170552               $ 14,250.00
51329         377 DNA Sequencer        724320                 $ 76,216.49
              377XL DNA Sequencer
              Upgrade                  90170552               $ 14,250.00
51330         377 DNA Sequencer        728053                 $ 74,086.03
              377XL DNA Sequencer
              Upgrade                  90170552               $ 14,250.00
              377 DNA Sequencer with
11421         377 Seq. Kit             733469                 $ 74,844.83
              377XL DNA Sequencer
              Upgrade                  90170552               $ 14,250.00
              377 DNA Sequencer with
11422         377 Seq. Kit             733469                 $ 74,844.83
              377XL DNA Sequencer
              Upgrade                  90170552               $ 14,250.00
              377 DNA Sequencer with
11423         377 Seq. Kit             733469                 $ 74,844.83
              377XL DNA Sequencer
              Upgrade                  90170552               $ 14,250.00
              377 DNA Sequencer with
11427         377 Seq. Kit             730516                 $ 75,643.59
              377XL DNA Sequencer
              Upgrade                  90170552               $ 14,250.00
              377 DNA Sequencer with
11425         377 Seq. Kit             730516                 $ 75,643.58
              377XL DNA Sequencer
              Upgrade                  90170552               $ 14,250.00
              377 DNA Sequencer with
11426         377 Seq. Kit             730516                 $ 75,643.58
              377XL DNA Sequencer
              Upgrade                  90170552               $ 14,250.00
 



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                                    Page 1


                     ANNEX A TO EQUIPMENT SCHEDULE NO. 001
               TO MASTER LEASE AGREEMENT DATED DECEMBER 31, 1998



51345       Tecan Robot                    118815             $ 46,976.38
51346       Tecan Robot                    118816             $ 46,976.38
            Auto 740 Nucleic Acid
11695       Purification System            51868              $ 50,283.75
11142       Tecan                          120434             $ 53,327.91
11144       Tecan                          119214             $ 53,340.98
11255       50% prepay for Robot           93096              $ 14,155.63
            Abi Prism 377 SNA
51000       Sequencer                      800783             $ 71,367.45
            377XL DNA Sequencer
            Upgrade                        90046372           $ 14,250.00
            Abi Prism 377 SNA
51001       Sequencer                      800783             $ 70,550.76
            377XL DNA Sequencer
            Upgrade                        90081723           $ 12,765.11
            Abi Prism 377 SNA
51002       Sequencer                      800783             $ 70,550.76
            377XL DNA Sequencer
            Upgrade                        90081723           $ 12,765.11
51015       Tecan Robot                    122229             $ 55,243.65
51016       Tecan Robot                    122231             $ 59,929.65
51017       Tecan Robot                    122230             $ 55,243.65
11684       Tecan Genesis 150              123784             $ 68,230.27
11685       Tecan Genesis 150              123768             $ 68.230.27
11686       Tecan Genesis 150              123786             $ 68,230.27
11691       Storm Model 840 Pkg            119612             $ 60,885.96
11972       Upgrade Storm 840              120300             $  9,600.00
11690       1/2 of Robot                   2413               $ 17,487.62
51392       Sun Server 3000                BB101636           $ 61,866.40
11850       Storage Array                  BB1051785          $ 59.941.60
            PlateMate Auto 96 ch
12052       Pipettor                       61167              $ 49,557.76
            AutoGen 740 Nucleic Acid
12262       Purification System            59741              $ 87,560.00
            fMax Fluorescence
12261       Microplate reader              13100231           $ 25,388.00
12403       Enterprise 4000/250            BB1055116          $126,641.60
12857       Ultra 11 300                   BB1054893          $ 41,339.20
            Automated DNA
12502       Synthesizer System             90084718           $146,187.00
            Sun SparcStorage Array w/
12541       Sbus 1/0 Board                 BB1055737          $ 78,876.00
12584       DNA Sequencer, Prism 377       90144166           $110,883.00
            377XL DNA Sequencer
            Upgrade                        90081723           $ 12,765.11
12585       DNA Sequencer, Prism 377       90144166           $110,883.00
            377XL DNA Sequencer
            Upgrade                        90081723           $ 12,765.11


 
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Lessor's Initials
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                                    Page 2


                     ANNEX A TO EQUIPMENT SCHEDULE NO. 001
               TO MASTER LEASE AGREEMENT DATED DECEMBER 31, 1998

 
12586     DNA Sequencer, Prism 377               90144166       $110,883.00
          377XL DNA Sequencer
          Upgrade                                90081723       $ 12,765.11
12587     DNA Sequencer, Prism 377               90144166       $110,883.00
          377XL DNA Sequencer
          Upgrade                                90081723       $ 12,765.11
          Resonetics MicroMaster UV              50%DWN PT
112803    MicroMachiniq System                   8598, 8626     $158,436.98

                                                              $3,551,784.19


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