 Current Edition
B’Or Ha’Torah 19
5770/2009
(160 pages in English)
Rabbi Professor Avraham Steinberg, MD, explains that Jewish law permits research on embryonic stem cells because the Talmud states that in its first forty days the embryo is not yet a human being. Biologist Leah Poltorak sharpens the focus and shows that new genetic research supports the opinion in the Talmud that the determination of male gender takes forty days; and of female gender, eighty days.
| Table of Contents |
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On the Embryological Foresight
of the Talmud
Leah Poltorak, MS |
Abstract |
Bio |
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Is Gender Determined by External Organs
or by Genes?
Rabbi Gideon Weitzman |
Abstract |
Bio |
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