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19-12-2022
Biology

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Estimates of mutation rates for a variety of genes indicate that the frequency of errors during replication is much lower than would be predicted on the basis of complementary base pairing. Which of the following mechanisms accounts for the higher degree of fidelity?a. Conformational changes in DNA polymeraseb. 3′ to 5′ exonuclease activity of DNA polymerasec. Requirement of a primer for DNA synthesis by DNA polymerased. All of the above

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