The duration of the cell cycle is decreased in response to increased amounts of
A)telomerase.
B)cyclin D.
C)DNA helicase.
D)proteasome.

Question

Quizplus · Accepted Answer

Cyclin D is a protein that activates cyclin-dependent kinases (CDKs), which are enzymes that control progression through the cell cycle. When cyclin D levels increase, it leads to faster progression through the cell cycle and a shorter duration of the cycle overall.

Note: None of the other answer choices are directly involved in regulating the duration of the cell cycle. Telomerase, DNA helicase, and proteasome are involved in other cellular processes.

The Duration of the Cell Cycle Is Decreased in Response