Because genetic matches are most likely to come from one's ethnic group, she is looking to the Jewish community for help.

Beth Sholom will hold a combination bone marrow registration drive, blood drive and used clothing drive from 8:45 a.m. to 1:30 p.m. Sunday, Dec. 12, at 1301 Clement St., San Francisco.

Donors in good health who submit to a blood test must be must be between the ages of 18 and 60.

The synagogue must raise $65 per person to test and store each registrant's blood sample. Contributions payable to Beth Sholom Bone Marrow Drive may be sent to Congregation Beth Sholom, 1301 Clement St., S.F., CA 94118, Attention: David Kosak.

At least 19 Bay Area Jewish organizations and synagogues are publicizing the drive.

For an appointment, call Juliette Hirt at (415) 642-8431. For information about being a blood or marrow donor, call Blood Centers of the Pacific at (415) 567-6400.