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Microbiology - DNA Sequencing, Mutation and Repair

Exercise : DNA Sequencing, Mutation and Repair - Section 1
  • DNA Sequencing, Mutation and Repair - Section 1
11.
Which of the following mutation affects only a single nucleotide?
Aerial mutation
Site mutation
Point mutation
Regional mutation
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
When mutations involve vital functions so that the mutants are nonviable, it is a
nonsense mutation
lethal mutation
transversion
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
A mutagen is defined as
an enzyme that repairs mutations
a chemical or physical agent that induces mutations
an inhibitor of gene modification
a molecule which stabilizes DNA thus prevents mutations from occurring
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
The DNA sequences of rRNA genes can be used to
assess relatedness of eukaryotes but not prokaryotes
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
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
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
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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