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Question 4 4 pts Which statement best describes mismatch repair mechanism uracile glcosylase is part of this mechanism. An li

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Answer #1

Answere : None of any option best describes "mismatch repair mechanism. These all statements are related to other repair mechanism such as base and nucleotide excision repair, photoreactivation, double stranded break repair etc.

Direct repair and excision repair function by looking for bases not normally found in DNA (e.g. bases chemically modified). Mismatch repair enzymes recognize normal bases that are incorrectly base paired.

Features of mismatch repair mechanism are :
1. As soon as replication fork passes a sequence, mismatch repair enzymes scan newly synthesized DNA strands and replace incorrect bases with correct ones

2. Critical feature is these enzymes use the original parental strand as template for repair DNA synthesis

3. Proteins involved in Mismatch repair mechanism are : mutS, mutH, mutL, exonuclease I, DNA polymerase III.

Mismatch repair is important for recognizing, removing, and repairing the DNA strand.

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