What is the function of topoisomerase?
A)relieving strain in the DNA ahead of the replication fork
B)elongating new DNA at a replication fork by adding nucleotides to the existing chain
C)adding methyl groups to bases of DNA
D)unwinding of the double helix

Question

Quizplus · Accepted Answer

Topoisomerase is responsible for relieving strain in the DNA ahead of the replication fork by breaking and rejoining the DNA strands, allowing them to rotate and relieve tension. It does not elongate new DNA, add methyl groups, or unwind the double helix.

What Is the Function of Topoisomerase