easy · MCAT bio-biochem

In the process of DNA replication, the leading and lagging strands are synthesized in different ways due to the antiparallel nature of DNA. A researcher discovers a mutation in a cell line that prevents the joining of DNA fragments on the lagging strand.

This mutation most likely affects which enzyme?

  1. Helicase.
  2. Topoisomerase.
  3. DNA ligase.
  4. DNA polymerase III.

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