Which of the following enzymes facilitate the relaxation of supercoiling in DNA?
A) ligases
B) topoisomerases
C) primases
D) helicases

Question

Quizplus · Accepted Answer

Topoisomerases are enzymes that facilitate the relaxation of supercoiling in DNA by cutting and rejoining the DNA strands, thereby changing the number of supercoils. Ligases are enzymes that join two DNA strands together. Primases are enzymes that synthesize short RNA strands that serve as primers for DNA replication. Helicases are enzymes that separate double-stranded DNA into single strands by breaking the hydrogen bonds between the base pairs. None of these enzymes directly facilitate the relaxation of supercoiling in DNA.

Which of the Following Enzymes Facilitate the Relaxation of Supercoiling