Molecular biology

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Key molecules and their functions

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Topoisomerase and DNA Gyrase

MutS

MutL

DNA polymerase

DNA ligase

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Joins adjacent bases to reform strands

Matches base pairs to create new DNA strands.

Scans nearby DNA for the nick and triggers strand removal to the mismatch.

Prevents the super coiling of DNA during unwinding

Binds to mismatched base pair


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