Question

Typically, during replication only one error occurs for every 10,000 nucleotides.

Select one:
True
False

Answer 1

Errors in DNA replication are rare events in a cell due to various mechanisms that help maintain accuracy, such as proofreading by DNA polymerase and DNA mismatch repair. Enzymes like DNA ligase and DNA helicase also contribute to reducing the rate of errors.

Step-by-step explanation:

Errors in DNA replication are rare events in a cell due to various mechanisms that help maintain accuracy. One mechanism is the presence of enzymes like DNA polymerase, which have proofreading abilities and can correct errors during replication.

Another important mechanism is DNA mismatch repair, which efficiently fixes nucleotide mismatches. Additionally, the rate of errors is reduced by the action of DNA ligase and DNA helicase.