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colleen colleen
wrote...
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Posts: 17076
10 years ago
The key factor that determines whether the undifferentiated gonads develop into testes is the
a. gene Sry located on the Y chromosome.
b. secretion of testosterone from the adrenals.
c. gene Sry located on the X chromosome.
d. 21st pair of chromosomes.
e. secretion of androgens from the gonads.
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Sunshine ☀ ☼
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ThePsychicThePsychic
wrote...
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Posts: 11223
10 years ago
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