Question

Which of the following is NOT a process that regulates cell division in mammals?

A. Activated cyclin-CDK complexes triggering cell cycle events.
B. Different cyclins and CDKs acting at different stages of the cell cycle to promote cell division.
C. Rapid degradation of cyclins after CDK activation.
D. Production of cyclin proteins that activate CDK enzymes.

Answer 1

The process that is NOT a regulator of cell division in mammals is the rapid degradation of cyclins after CDK activation.

Step-by-step explanation:

The process that is NOT a regulator of cell division in mammals is the rapid degradation of cyclins after CDK activation. Cyclins are regulatory proteins that bind to cyclin-dependent kinases (CDKs) to activate them and promote cell division. However, once the cell cycle progresses to the next stage, the active cyclins are degraded. This degradation is necessary to regulate the timing and progression of the cell cycle.