1

                                                                    Exhibit 23.1


               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

We consent to the incorporation by reference in the Registration Statements on
Form S-8 pertaining to the 1992 Stock Option Plan (No. 333-45762) and Form S-3
(Nos. 333-40984 and 333-32256) and in the related prospectuses of Geron
Corporation of our report dated February 9, 2001, with respect to the
consolidated financial statements of Geron Corporation included in the Annual
Report (Form 10-K) for the year ended December 31, 2000.


/s/ Ernst & Young LLP
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Ernst & Young LLP

San Francisco, California
March 23, 2001