Q.

Given below are two statements. 
Statement I : During the G0 phase of the cell cycle, the cell is metabolically active.
Statement II : The centrosome undergoes duplication during the G1 phase of interphase.
In light of the above statements, choose the correct answer from the options given below. 
 

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a

Statement I is correct but statement II is incorrect. 

b

Statement I is incorrect but statement II is correct. 

c

Both statement I and statement II are incorrect. 

d

Both statement I and statement II are correct. 

answer is C.

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Detailed Solution

The G1 phase corresponds to the interval between mitosis and initiation of DNA replication. During the G1 phase, the cell is metabolically active and continuously grows but does not replicate its DNA.

In animal cells, during the S phase, DNA replication begins in the nucleus, and the centriole duplicates in the cytoplasm.

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