Bio-Chemistry (M.Phil./Ph.D.) 2014 Panjab University Entrance Exam With Answers

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16.

How would the cell cycle be affected if you removed the phosphorylation sites in the Rb protein ?

A: The cell cycle would not be affected because pRb is not hosphorylated normally.
B: The cell cycle would be blocked in G1
C: The cell cycle would be blocked in G2
D: The cell cycle would be shorter

The answer is: B

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