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AP Biology/Unit 4: Cell Communication and Cell Cycle
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CDK Concentration In The Cell Cycle
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The concentration of cyclin-dependent kinases (CDKs) is observed to be significantly lower in cells in the G1 phase than in cells in the M phase. Which of the following statements best explains this observation?

A

CDKs accumulate throughout interphase to trigger mitosis

B

CDKs are degraded during mitosis to allow cell division

C

CDKs remain constant throughout the cell cycle

D

CDKs are only synthesized during DNA replication

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