What Causes the Decrease in the Amount of Cyclin at a Specific

question 44

Multiple Choice

What causes the decrease in the amount of cyclin at a specific point in the cell cycle?

• A)an increase in production once the restriction point is passed
• B)the cascade of increased production once its protein is phosphorylated by Cdk
• C)the changing ratio of cytoplasm to genome
• D)its destruction by a process initiated by the activity of its complex with Cdk
• E)the binding of PDGF to receptors on the cell surface

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