A single injection of testosterone into a female rat soon after birth produces
A) an adult with a hyper-female brain.
B) an adult that displays normal female sexual behavior as soon as the effects of the testosterone wear off.
C) an effect on later sexual behavior only if her ovaries are also removed at that time.
D) irreversible effects on her adult sexual behavior.

Question

Quizplus · Accepted Answer

Testosterone exposure in neonatal female rats leads to masculinization and defeminization of their brain and behavior, resulting in irreversible changes to their adult sexual behavior. This is because the critical period for sexual differentiation of the brain is very sensitive to hormonal influences.

A Single Injection of Testosterone into a Female Rat Soon