Question

Question #eeb0b

Answer 1

Cyclins are regulatory subunits of protein kinases.

Explanation:

• Cyclin subunits are essential for activation of the protein kinase activity.
• The levels of cyclins fluctuate during the cell cycle and in response to cellular and extracellular signals.
• Hence, results in changes in the activities of the cyclin-dependent protein kinases that in turn regulate and control the cell cycle.

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