MMR (mismatch repair)

Mismatch repair (MMR) is a cellular process that corrects errors made during DNA copying before cell division. When DNA is copied, mistakes like using the wrong base or skipping some bases can occur. MMR recognizes these errors, removes the incorrect sections, and fills in the correct DNA sequence. This helps maintain the integrity of genetic information, preventing mutations that could lead to diseases like cancer. Proper MMR function is essential for healthy cell division and overall genetic stability.