Question

20. Cyclin and CDKs are like a lock and a key that start the process at different _____.

Answer 1

Cyclin and CDKs start the process at different checkpoints in the cell cycle.

Step-by-step explanation:

If we compare cyclin and CDKs to a lock and a key, the process they start at different checkpoints in the cell cycle. Cyclins and cyclin-dependent kinases (CDKs) work together to regulate the progression of the cell cycle. Cyclins fluctuate in concentration throughout the cell cycle and bind to CDKs at specific points, forming Cdk/cyclin complexes that activate proteins involved in advancing the cell to the next phase.