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DNA Sequencing, Mutation and Repair

Q1: Due to which of the following DNA repair mechanisms, one is able to distinguish newly synthesized DNA strands from older one?

A New strands do not contain cytosine bases

B New strands are lower in molecular size

C Old strands are methylated while new strands are not

D New strands are methylated while old strands are not

ANS:C - Old strands are methylated while new strands are not

I think option D should be correct.



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