Explain the reason for Why the given Answer (option) is correct.

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3. Since meiosis occurs in germ cells or the cells that produce gametes , germinal cells show meiosis. Whereas mitosis usually occurs in somatic or autosomal cells. Hence option A is correct.

4. The correct answer is option B - photoreactivation. It is also called direct reversal of DNA damage since here a pyrimidine dimer can be repaired after splitting due to photoreactivation.

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