Exercise: Dna Sequencing Mutation And Repair

Questions for: Dna Sequencing Mutation And Repair

Differentiation of four different bases in automated sequencing systems is that each base has
A:
different radioactive tag
B:
cytosine at start
C:
unique antibody bound to it
D:
distinctive fluorescent tag
Answer: D
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The promoter on an expression vector used to overproduce proteins in bacteria is
A:
a bacterial promoter
B:
expressed both in bacteria and mammalian cells
C:
not a regulated promoter
D:
the natural promoter of the gene being cloned
Answer: A
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Thymine dimers are directly repaired with the help of visible light by process known as
A:
phosphorylation
B:
excision repair
C:
photosynthesis
D:
photoreactivation
Answer: D
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Frame shift mutation may occur as a result of
A:
formation of a thymine-dimer
B:
deamination of cytosine to uracil
C:
conversion of guanine to xanthine
D:
none of the above
Answer: D
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Which of these mechanisms for thymine dimers repair lead to mutations?
A:
Excision repair
B:
Photoreactivation
C:
SOS repair
D:
Never leads to mutation
Answer: C
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