Question

Which one of the following players in the e. Coli dna mismatch repair system possesses the ability to hydrolyze a phosphodiester linkage in a molecule of deoxyribonucleic acid?

Answer 1

MutH.

Step-by-step explanation:

DNA repair system is important to correct the mismatch or damaged DNA. Different enzymes and different proteins are involved in the mismatch repair system of DNA.

The proteins are MutH, MutS and enzymes are ligase and polymerase. The Mut H acts as an endonuclease that breaks the phosphodiester bond. The MutH is involved in the hydrolysis of the phosphodiester bond. This enzyme cleaves the hemi methylated DNA.

Thus, the correct answer is MutH.