DNA Sequencing, Mutation and Repair
Frame shift mutation may occur as a result of

conversion of guanine to xanthine
deamination of cytosine to uracil
None of these
formation of a thymine-dimer

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DNA Sequencing, Mutation and Repair
The whole-genome shotgun sequencing approach depends primarily on

All of these
rapidly sequencing thousands of small randomly cloned fragments
methodical sequencing a few large cloned fragments of DNA
sequencing the bacterial chromosome while it is still intact

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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?

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

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