When the PER and TIM levels increase, they feed back to inhibit the genes that produce the ____ molecules.
A) Tau
B) messenger RNA
C) Chronos
D) DNA

Question

Quizplus · Accepted Answer

When PER and TIM levels increase, they form a complex that feeds back to inhibit the genes that produce messenger RNA (mRNA) molecules. These mRNA molecules are involved in the production of PER and TIM proteins, which are essential components of the circadian clock. By inhibiting the production of mRNA, the levels of PER and TIM are eventually reduced, allowing for the cycle to start anew. The other choices, Tau and Chronos, are not directly involved in this feedback inhibition process, and DNA is the template for mRNA production, rather than the target of PER and TIM inhibition.

When the PER and TIM Levels Increase, They Feed Back