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What is the function of enzyme involved in base excision repair?

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What is the function of enzyme involved in base excision repair?

(a) Addition of correct base

(b) Addition of correct nucleotide

(c) Removal of incorrect base

(d) Removal of phosphodiester bond

I have been asked this question in an interview.

Origin of the question is DNA Repair topic in chapter DNA, RNA and Protein Metabolism of Biochemistry

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Right answer is (c) Removal of incorrect base

For explanation: DNA glycosylases are responsible for the removal of the incorrect base in base excision repair.

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