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Proof-reading


Proof-reading: Mechanism for correction of errors made during synthesis of nucleic acids or polypeptides by scrutiny of the products after the nucleotides or amino acids have already been incorporated.
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DNA viruses have considerably lower mutation rates due to the proof-reading ability of DNA polymerases within the host cell.
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And thanks to the precision of the process (which includes a "proof-reading" function), the job is done with only about one incorrect nucleotide for every 109 nucleotides inserted. In other words, more often than not, the E.
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