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DNA Sequencing, Mutation and Repair

DNA Sequencing, Mutation and Repair
The mutation which will not affect the length of a protein is,

missense mutation
nonsense mutation
all of these
frameshift mutation

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

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

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

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

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DNA Sequencing, Mutation and Repair
When mutations involve vital functions so that the mutants are nonviable, it is a

nonsense mutation
lethal mutation
none of these
transversion

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DNA Sequencing, Mutation and Repair
A nonsense mutation may result into

an abnormal elongation of a polypeptide
a large deletion within the reading frame of a gene
a premature termination of the synthesis of a polypeptide
modification of mRNA

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

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

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