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

deamination of cytosine to uracil
conversion of guanine to xanthine
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
methodical sequencing a few large cloned fragments of DNA
rapidly sequencing thousands of small randomly cloned fragments
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 are lower in molecular size
Old strands are methylated while new strands are not
New strands do not contain cytosine bases
New strands are methylated while old strands are not

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

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

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DNA Sequencing, Mutation and Repair
A mutagen is defined as

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

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