When the SRY gene of the Y chromosome becomes active (around seven weeks), the ____.
A) Müllerian and Wolffian ducts both develop into male reproductive structures
B) Müllerian ducts develop into male reproductive structures and the Wolffian ducts disappear
C) Müllerian ducts disappear and the Wolffian ducts develop into male reproductive structures
D) Müllerian and Wolffian ducts both disappear
E) Müllerian and Wolffian ducts both develop into female reproductive structures

Question

Quizplus · Accepted Answer

The activation of the SRY gene on the Y chromosome triggers the development of male sexual characteristics. Specifically, it leads to the degeneration of the Müllerian ducts and the development of the Wolffian ducts into male reproductive structures.

When the SRY Gene of the Y Chromosome Becomes Active