What Is the Function of the Enzyme Topoisomerase in DNA

question 21

Multiple Choice

What is the function of the enzyme topoisomerase in DNA replication?

• A) Relieving strain in the DNA ahead of the replication fork caused by the untwisting of the double helix.
• B) Elongating new DNA at a replication fork by adding nucleotides to the existing chain.
• C) Reattaching the hydrogen bonds between the base pairs in the double helix.
• D) Building RNA primers using the parental DNA strand as a template.

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