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Question

The phase of the cell cycle in which DNA synthesis takes place is _______

A
G1 phase
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B
S phase
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C
G2 phase
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D
G0 phase
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Solution

The correct option is A S phase
There are 4 phases of the cell cycle, namely G1 phase, S phase, G2 phase and M phase. During G1 phase or gap 1 phase, the cell increases in size. Also, various proteins are synthesized in this phase. During S phase or synthesis phase, the DNA replication takes place. During G2 phase, cell continues to grow until it enters the M phase or mitosis phase. Cell division takes place in M phase.
Thus, the correct answer is 'S phase.'

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