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Which of the following statements about DNA repair is TRUE? A. There is no DNA repair system to deal with damage caused by exposure to ultraviolet light. B. All mutations are detected and fixed by DNA repair systems. C. DNA repair systems recognize distortions in the DNA double helix. D. All of the mistakes made in DNA replication are fixed by the proofreading activity of DNA polymerase.

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Answer:

B. All mutations are detected and fixed by DNA repair systems.

C. DNA repair systems recognize distortions in the DNA double helix.

D. All of the mistakes made in DNA replication are fixed by the proofreading activity of DNA polymerase.

Explanation:

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