A particular cyclin called cyclin E forms a complex with a cyclin-dependent kinase called Cdk 2. This complex is important for the progression of the cell from G₁ into the S phase of the cell cycle. Which of the following statements is correct?
A)The amount of cyclin E is greatest during the S phase.
B)The amount of Cdk 2 is greater during G₁ compared to the S phase.
C)The amount of cyclin E is highest during G₁.
D)The amount of Cdk 2 is greatest during G₁.
E)The activity of the cyclin E/Cdk 2 complex is highest during G₂.

Question

Quizplus · Accepted Answer

Cyclin E levels peak during the G₁ phase to help initiate the transition into the S phase by activating Cdk 2.

A Particular Cyclin Called Cyclin E Forms a Complex with a Cyclin-Dependent