Particular Cyclin Dependent Kinases (CDKs) bind their specific cyclins, leading to regulation of cell growth and replication at particular times in the cell cycle. Both cyclins and CDKs are expressed only during the phase of the cell cycle at which they act.

Question

Quizplus · Accepted Answer

The first sentence is accurate in describing the interaction between cyclins and CDKs and their role in cell cycle regulation. However, the second sentence is incorrect because cyclins are synthesized and degraded at specific times during the cell cycle, but CDKs are usually present throughout the cell cycle and are activated by binding to their respective cyclins at specific phases.

Particular Cyclin Dependent Kinases (CDKs) Bind Their Specific Cyclins, Leading