DNA Sequencing, Mutation and Repair
Due to which of the following DNA repair mechanisms, one is able to distinguish newly synthesized DNA strands from older one?

Old strands are methylated while new strands are not
New strands are methylated while old strands are not
New strands are lower in molecular size
New strands do not contain cytosine bases

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DNA Sequencing, Mutation and Repair
The DNA sequences of rRNA genes can be used to

assess relatedness of eukaryotes but not prokaryotes
predict the pulsed field gel pattern of a microorganism
predict whether a bacteria will be gram-positive or gram-negative
obtain a tentative identification of a new microorganism

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