During mismatch repair in E. coli, the parental strand is recognized by A) single-stranded breaks. B) glycosylated adenines. C) methylated adenines. D) methylation of the O⁶ position of guanine residues.

Question

Quizplus · Accepted Answer

The parental strand in E. coli is recognized during mismatch repair through methylation of adenine bases on the parental strand, creating a hemimethylated region. The mismatch repair system can distinguish the parental strand from the newly synthesized daughter strand based on the methylation status of adenine residues. Therefore, choice C (methylated adenines) is the correct answer.

During Mismatch Repair in E