Which of the Following Statements About Thymine Dimers Is False

question 22

Multiple Choice

Which of the following statements about thymine dimers is false?

• A) They are repaired by excision repair.
• B) They are repaired by one enzyme that can clip out, lay down new nucleotides, and seal the gap.
• C) Patients with xeroderma pigmentosum have faulty DNA repair mechanisms.
• D) If resulting mutations accumulate, it can result in cancers.
• E) They can be produced by exposure to UV light.

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