Assertion : $G_{1}$ phase is the interval between mitosis and initiation of DNA replication. Reason: The cell is metabolically inactive during $G_{1}$ phase.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
$G_{1}$ phase is also known as first growth phase or post mitotic gap phase. It is the phase between end of mitotic phase of previous cell and initiation of S-phase of next mitotic phase. During $G_{1}$ phase the cells is metabolically active and continuously grows. In this phase different type of RNA (mRNA,tRNA and rRNA) and proteins are synthesised. So option C is correct.

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