The first event to occur during development of the reproductive system would be the
A)descent of the testes into the scrotum.
B)formation of the vagina.
C)onset of testosterone production.
D)development of the Müllerian ducts.

Question

Quizplus · Accepted Answer

The development of the Müllerian ducts is the first event to occur during the development of the reproductive system. These ducts are responsible for the development of the female reproductive system, including the uterus, fallopian tubes, and upper portion of the vagina. The development of the male reproductive system occurs later, with the descent of the testes into the scrotum and the onset of testosterone production. The formation of the vagina occurs later in development as well, as it requires the fusion of the Müllerian ducts with the urogenital sinus.

The First Event to Occur During Development of the Reproductive