Which of the following statements about DNA repair is TRUE?
A) All of the mistakes made in DNA replication are fixed by the proofreading activity of DNA polymerase.
B) There is only one DNA repair system in humans.
C) All mutations are detected and fixed by DNA repair systems.
D) DNA repair systems recognize distortions in the DNA double helix.
E) There is no DNA repair system to deal with damage caused by exposure to ultraviolet light.
Correct Answer:
Verified
Q9: Free radicals
A) only cause frameshift mutations.
B) form
Q10: Which of the following statements about mutations
Q11: A cell that has accumulated a lot
Q12: Epigenetics involves changes in
A) the sequence of
Q13: Mutations
A) are always easy to detect.
B) always
Q15: Mutations are only
A) changes in the nucleotide
Q16: Environmental mutagens include certain molecules found in
A)
Q17: Base analogs
A) often cause frameshift mutations.
B) lead
Q18: Researchers have found that when radiation doses
Q19: Types of mutations include all of the
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