What is the function of DNA gyrase?
A) connects Okazaki fragments by sealing nicks in the sugar-phosphate backbone
B) unwinds the double helix by breaking the hydrogen bonding between the two strands at the replication fork
C) reduces the torsional strain that builds up ahead of the replication fork as a result of unwinding
D) binds to oriC and causes a short section of DNA to unwind
E) prevents the formation of secondary structures within single-stranded DNA

Question

Quizplus · Accepted Answer

DNA gyrase is an enzyme that reduces torsional strain by introducing negative supercoils or relaxing positive supercoils, which helps in unwinding the DNA ahead of the replication fork.

What Is the Function of DNA Gyrase