In Mammals, Gonadal Differentiation is Determined By

Question

In mammals, gonadal differentiation is determined by
A) genotypic sex.
B) gonadal sex.
C) the presence or absence of the Y chromosome.
D) the presence or absence of the X chromosome.
E) the presence or absence of specific hormones.

Accepted Answer

Gonadal differentiation in mammals is primarily determined by the presence or absence of the Y chromosome. The SRY gene on the Y chromosome initiates the development of the testes, leading to male gonadal differentiation.