Melanopsin knockout mice have difficulty
A) adjusting their circadian rhythms in response to changes in the daily light-dark cycle.
B) seeing.
C) sleeping on a regular schedule.
D) displaying circadian rhythms.
E) recognizing circadian signals.

Question

Quizplus · Accepted Answer

Melanopsin is a photopigment found in a specific type of retinal cell that is responsible for regulating circadian rhythms. Knocking out melanopsin in mice results in an inability to adjust their circadian rhythms in response to changes in the daily light-dark cycle.

Melanopsin Knockout Mice Have Difficulty