In nucleotide-excision repair, the first enzyme to act is: Group of answer choices excinuclease DNA ligase DNA polymerase I DNA helicase
Question
Solution 1
In nucleotide-excision repair, the first enzyme to act is DNA helicase.
Here's a step-by-step explanation:
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DNA damage is recognized: The first step in nucleotide-excision repair is the recognition of DNA damage. This is done by various proteins that scan the DNA for abnormalities.
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