Proofreading activity to maintain the fidelity of DNA synthesis:Select one:a. Requires the presence of an enzyme separate from the DNA polymeraseb. Occurs in prokaryotes but not in eukaryotesc. Occurs after the synthesis has been completed
Question
Proofreading activity to maintain the fidelity of DNA synthesis:Select one:a. Requires the presence of an enzyme separate from the DNA polymeraseb. Occurs in prokaryotes but not in eukaryotesc. Occurs after the synthesis has been completed
Solution
The proofreading activity to maintain the fidelity of DNA synthesis:
a. Does not necessarily require the presence of an enzyme separate from the DNA polymerase. DNA polymerase itself has proofreading activity. It can remove mispaired nucleotides from the newly synthesized strand and replace them with the correct ones.
b. Occurs in both prokaryotes and eukaryotes. It is a fundamental process to ensure the accuracy of DNA replication and is not limited to a specific type of organism.
c. Does not occur after the synthesis has been completed. It is a part of the DNA replication process. The DNA polymerase checks the accuracy of nucleotide pairing while it is synthesizing the new DNA strand. If an error is detected, it is corrected immediately.
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