A couple who have three daughters would like to add a son to their family, and they have recently learned that the woman is pregnant
Which of the following phenomena would most likely be associated with the woman's eventual delivery of a healthy son?
A)
The production of dihydrotestosterone (DHT) by the embryo and DHT's differentiation into testosterone
B)
Development of testes under the influence of the X chromosome
C)
Suppression of female reproductive structures by anti-Müllerian hormone (AMH)
D)
Atrophy of the Wolffian ducts during embryonic development
Ans:
C
Feedback:
AMH suppresses the development of female genital structures and is a normal aspect of normal sex differentiation. Testosterone is a precursor to DHT rather than vice versa, and testes develop under the influence of the Y chromosome. The Wolffian ducts are a component of male sex differentiation.
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