In Base-Excision Repair, the First Enzyme to Act Is

Question

In base-excision repair, the first enzyme to act is:
A) AP endonuclease.
B) Dam methylase.
C) DNA glycosylase.
D) DNA ligase.
E) DNA polymerase.

Accepted Answer

In base-excision repair, the first enzyme to act is a DNA glycosylase, which recognizes and removes the damaged or incorrect base from the DNA backbone.