試題詳解

13. Which of the following statements about cyclin-dependent kinases is INCORRECT?
(A) Different types of cells regulate the cell cycle through distinct CDK complexes with specific cyclins.
(B) CDK activity fluctuates depending on the stage of the cell cycle.
(C) CDK activity is controlled by mechanisms such as gene expression, phosphorylation, and protein degradation.
(D) Cyclins are essential regulators of CDK activity.
(E) CDKs regulate proteins that drive cell cycle progression.