A new hamster mutant has a daily rhythm (in the absence of light cues) with a period of 8 hours. If you transplant the fetal SCN from this animal into the brain of an adult hamster with the tau mutation (and its own SCN lesioned), you would expect the period of this adult's rhythm to be

Question

Quizplus · Accepted Answer

The SCN (suprachiasmatic nucleus) is the primary circadian pacemaker in mammals. Transplanting the SCN from a mutant with an 8-hour rhythm into another hamster will result in the recipient expressing the donor's rhythm, which is 8 hours.

A New Hamster Mutant Has a Daily Rhythm (In the Absence