What role does PARP1 have in repairing a single-strand DNA break?
A) recognizes the break
B) removes the methyl group from guanine
C) replaces the mismatched pair
D) absorbs light to become excited

Question

Quizplus · Accepted Answer

PARP1 recognizes the break and recruits other repair proteins to the site, such as polymerase and DNA ligase, to facilitate repair. PARP1 does not have a role in removing methyl groups, replacing mismatched pairs, or absorbing light.

What Role Does PARP1 Have in Repairing a Single-Strand DNA