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DNA Sequencing, Mutation and Repair

DNA Sequencing, Mutation and Repair
What was the first eukaryotic chromosome to be sequenced?

None of these
Arabidopsis chromosome IV
Yeast chromosome XI
Yeast chromosome III

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

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

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

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

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DNA Sequencing, Mutation and Repair
The promoter on an expression vector used to overproduce proteins in bacteria is

the natural promoter of the gene being cloned
a bacterial promoter
expressed both in bacteria and mammalian cells
not a regulated promoter

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DNA Sequencing, Mutation and Repair
Genetic variations are

not heritable
temporary
stable
influenced by the environment

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

Analogous mutations
Induced mutations
None of these
Spontaneous mutations

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