An IS (insertion sequence) element contains
A) a transposase gene only.
B) a transposase gene and additional genes.
C) a transposase gene and inverted repeats at the ends.
D) a transposase gene,additional genes,and inverted repeats at the ends.
E) genes but not a transposase gene.
Correct Answer:
Verified
Q10: A transposon is
A)a DNA segment that can
Q11: Which of the following is not mutagenic?
A)5BU
B)AZT
C)Nitrous
Q12: What is conservative transposition?
A)No net increase in
Q13: Thymine dimers are commonly caused by
A)ultraviolet radiation.
B)ionizing
Q14: The deamination of cytosine creates
A)5-methyl cytosine.
B)uracil.
C)2-aminopurine.
D)5-bromouracil.
E)thymine.
Q16: Dissociation elements (Ds)in plants are examples of
A)activator
Q17: Which of the following nucleotide changes leads
Q18: Mutation frequency is the
A)number of mutations per
Q19: The codon 5'-AAA-3' codes for the amino
Q20: What kind of mutation-detection procedure can be
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