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DNA Repair: Maintaining the Integrity of the Genome - Investigating the Mechanisms of DNA Damage and Repair
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Which enzyme is responsible for repairing single-strand breaks in DNA?
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A
DNA ligase
💡 Explanation:
DNA ligase is the enzyme that joins the 3'-hydroxyl group of one nucleotide to the 5'-phosphate group of the next nucleotide, forming a phosphodiester bond and sealing the break in the DNA strand.