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colleen colleen
wrote...
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Posts: 17077
9 years ago
The genetic sex of a fetus is determined by
a. the hormones produced by the pituitary during fetal development.
b. a single gene on the X chromosome.
c. the gonads.
d. the father’s sperm.
e. the phase of the menstrual cycle during which fertilization occurs.
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ThePsychicThePsychic
wrote...
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Posts: 11223
9 years ago
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