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To Prevent Cells with Unreplicated DNA from Passing Through the G₂

Question 58

Multiple Choice

To prevent cells with unreplicated DNA from passing through the G₂ checkpoint, Chk1 and Chk2 _______ protein phosphatase Cdc25.

A) phosphorylate and stimulate
B) phosphorylate and inhibit
C) dephosphorylate and stimulate
D) dephosphorylate and induce the degradation of

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