VHS
60 minutes
QH442 .S431 1993 no.3
For years, the Olympic Committee has barred athletes because, according to chromosome tests, they didn't appear to qualify as women; the Committee was wrong...Scientists now know that what causes a fetus to become male is a single gene on the Y-chromosome. This program introduces the master genes that determine our sex, our development, and possibly the length of our lives. Program 3.
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