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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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