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mojhsa [17]
2 years ago
13

Immediately after dna replication a dna repair mechanism scans the dna for incorrect base pairs. upon which feature of the dna m

olecule does the repair mechanism rely to indicate incorrect bases?
Biology
1 answer:
TEA [102]2 years ago
4 0

The answer is proofreading feature of DNA polymerase.  As the DNA polymerase III replicates DNA, it has a proofreading mechanism in one of the subunits of the holoenzyme. This subunit detects a bad conformation in the double helix when the wrong base pair is placed. In this case, the DNA polymerase III backs up a bit and waits for the exonuclease to nick out the misplaced base.






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