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Question 4#

The cell cycle includes all of the following phases EXCEPT:

A) S phase
B) G1 phase
C) G2 phase
D) G3 phase

Correct Answer is D

Comment:

The cell cycle is divided into four phases. During the synthetic or S phase, the cell generates a single copy of its genetic material, whereas in the mitotic or M phase, the cellular components are partitioned between two daughter cells. The G 1 and G2 phases represent gap phases during which the cells prepare themselves for completion of the S and M phases, respectively. When cells cease proliferation, they exit the cell cycle and enter the quiescent state referred to as G.