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

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

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DNA Sequencing, Mutation and Repair
A mutagen is defined as

an inhibitor of gene modification
a chemical or physical agent that induces mutations
a molecule which stabilizes DNA thus prevents mutations from occurring
an enzyme that repairs mutations

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

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

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