At the G₁-To-S Checkpoint, One of the Cyclins Has Reached

question 79

Multiple Choice

At the G₁-to-S checkpoint, one of the cyclins has reached a concentration great enough to complex with one of the CDKs to initiate DNA synthesis. Which cyclin and which CDK are the ones involved?

• A)cyclin G₁/S and CDK2
• B)cyclin G₁/S and CDK1
• C)cyclin S and CDK2
• D)cyclin S and CDK1

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