In humans, separation of the cells at the two-cell state following fertilization may lead to the production of twins, which in this case would be ________.
A) dizygotic
B) identical
C) fraternal
D) of different sexes
Correct Answer:
Verified
Q69: Spermiogenesis involves the _.
A) formation of four
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Q71: The structures that receive the ovulated oocyte,
Q72: Why is the blood-testis barrier important?
A) because
Q73: The most important risk for testicular cancer
Q75: Which of the following hormones controls the
Q76: Secretion of progesterone stimulates _.
A) contraction of
Q77: Erection of the penis results from _.
A)
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Q79: The constancy of the chromosome number from
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