In mammalian cells, a complex of proteins binds to the broken ends of the DNA duplex and catalyzes a series of reactions that rejoin the broken strands. This is an example of what kind of repair?
A)nucleotide excision repair
B)base excision repair
C)mismatch repair
D)nonhomologous end joining

Question

Quizplus · Accepted Answer

The repair process described involves the joining of broken ends of DNA strands, which is known as nonhomologous end joining. The other options listed (nucleotide excision repair, base excision repair, and mismatch repair) involve the recognition and removal of damaged or incorrect nucleotides from the DNA strand, rather than joining broken ends.

In Mammalian Cells, a Complex of Proteins Binds to the Broken