Thymine dimers
A) form when DNA is exposed to carcinogens such as tobacco smoke.
B) are rarely removed by DNA repair enzymes.
C) form when DNA is exposed to UV radiation.
D) result in abnormal protein structure which causes red blood cells to sickle.
Correct Answer:
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Q24: Identify which of the operon elements plays
Q25: Point mutations
A)are due to a change in
Q26: All of these are considered carcinogens EXCEPT
A)cigarette
Q27: Germ-line mutations
A)occur in sex cells.
B)can be passed
Q28: All genes are active at the same
Q30: You are more likely to develop some
Q31: Explain how the actions of the lac
Q32: Compared to just a century ago,a much
Q33: _ occurs as _ builds up
Q62: An oncogene is
A) a viral gene with
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