Question

Double-strand break - repair pathway (Fig. 11-4)

A) Non-homologous end joining (NHEJ)
B) Homologous recombination
C) Base excision repair
D) Nucleotide excision repair

Answer 1

The repair pathway for double-strand breaks is Homologous Recombination.

Step-by-step explanation:

The repair pathway for double-strand breaks is Homologous Recombination. When a double-stranded DNA break occurs, homologous recombination utilizes a set of enzymes and proteins to repair the break.

Homologous recombination involves proteins such as MRX, MRN, Sae2, and Sgs1. These proteins bind at the double-stranded break, recruit other factors, and assist in repairing the DNA.

Other repair pathways for DNA breaks include Non-homologous End-Joining (NHEJ), Base Excision Repair, and Nucleotide Excision Repair. However, in the context of the given question, the correct answer is Homologous Recombination.