If a female rat is lesioned in the suprachiasmatic nucleus, so her behavior is no longer rhythmic, and she subsequently becomes pregnant, her pups will:
A)fail to develop a circadian rhythm.
B)have to learn rhythmic behavior by watching intact rats.
C)develop a normal circadian rhythm.
D)adopt nocturnal rhythms.

Question

Quizplus · Accepted Answer

The suprachiasmatic nucleus (SCN) is responsible for controlling circadian rhythms. Even if the mother rat's SCN is lesioned, the pups will develop their own SCN and thus their own circadian rhythms independently.

If a Female Rat Is Lesioned in the Suprachiasmatic Nucleus