Sexual differentiation of the embryo is normally determined by
A) The presence of two X chromosomes, which directs the undifferentiated gonads to develop into ovaries
B) The presence of the Y chromosome, which directs the undifferentiated gonads to develop into testes (when there is one X chromosome present as well)
C) Hormones produced by the placenta
D) Both the presence of two X chromosomes, which directs the undifferentiated gonads to develop into ovaries and hormones produced by the placenta
E) Both the presence of the Y chromosome, which directs the undifferentiated gonads to develop into testes (when there is one X chromosome present as well) and hormones produced by the placenta
Correct Answer:
Verified
Q2: Sertoli cells
A)Form a barrier between the blood
Q3: Spermatogenesis
A)Begins with the mitotic division of a
Q4: Meiosis
A)Differs from mitosis in that in meiosis
Q5: Which of the following statements is false?
A)Sperm
Q6: Which of the following would be likely
Q8: Sperm
A)Are stored in the vas deferens and
Q9: SRY
A)Protein is normally coded for by a
Q10: In the differentiation of a normal male,
A)Undifferentiated
Q11: As sperm travel from their site of
Q12: The uterine tubes
A)Are also called fallopian tubes
B)Are
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