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Which of the following enzyme works in the nucleotide excision repair?

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Which of the following enzyme works in the nucleotide excision repair?

(a) DNA photolyase

(b) ABC exinuclease

(c) DNA glycosylase

(d) RecA

The question was asked in semester exam.

This interesting question is from DNA Repair topic in chapter Molecular Genetics of Life Sciences

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Right answer is (b) ABC exinuclease

Explanation: ABC excinuclease involves the removal of short, usually 12 nucleotide segment. This system is best studied in E.coli.

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