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What is true about Wolffian ducts? They do not degenerate in females. They devel

ID: 3473292 • Letter: W

Question

What is true about Wolffian ducts?

They do not degenerate in females.

They develop into a male reproductive tract under the influence of testosterone.

They develop into male external genitalia under the influence of dihydrotestosterone.

Both a and b

Both a and c

Choose the incorrect pairing related to blood pressure control:

kidneys, long term control

baroreceptor reflex, short-term control

fluid-shift, long-term control

thirst, long-term control

All of the pairings above are incorrect.

A secondary spermatocyte is ______ with _______ chromosomes.

haploid, nonreplicated

haploid, replicated

diploid, nonreplicated

diploid, replicated.

none of the above

a.

They do not degenerate in females.

b.

They develop into a male reproductive tract under the influence of testosterone.

c.

They develop into male external genitalia under the influence of dihydrotestosterone.

d.

Both a and b

e.

Both a and c

Explanation / Answer

Question: 1. What is true about Wolffian ducts?

Answer: b. They develop into a male reproductive tract under the influence of testosterone.

In both the male and the female the Wolffian duct develops into the trigone of urinary bladder. Wolffian duct degenerates in females and develops in males. Testosterone promotes development of the Wolffian ducts. In male sexual differentiation occurs when the ducts are exposed to testosterone during embryogenesis. In a male, the Wolffian duct develops into parts of the male reproductive system, such as the epididymis and the vas deferens. In the absence of testosterone the Wolffian duct regresses in the female.

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