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DNA Sequencing, Mutation and Repair

DNA Sequencing, Mutation and Repair
Which of the following mutation affects only a single nucleotide?

Regional mutation
Aerial mutation
Site mutation
Point mutation

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DNA Sequencing, Mutation and Repair
Genetic variations are

stable
influenced by the environment
not heritable
temporary

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DNA Sequencing, Mutation and Repair
A nonsense mutation introduced into the DNA sequence of a gene may

shorten the length of the protein encoded by the gene
cause a shift in reading frame
cause premature termination of the mRNA
have no effect on the transcript or protein made

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DNA Sequencing, Mutation and Repair
Which of the following mutations arise without exposure to external agents?

Spontaneous mutations
Induced mutations
None of these
Analogous mutations

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DNA Sequencing, Mutation and Repair
Changes in which of the following characterizes mutations?

Both (a) and (b)
None of these
Genotype
Phenotype

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DNA Sequencing, Mutation and Repair
Differentiation of four different bases in automated sequencing systems is that each base has

unique antibody bound to it
distinctive fluorescent tag
cytosine at start
different radioactive tag

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