MHT CET Medical202622 April 2026Evening ShiftBiologyMolecular Basis of InheritanceActual
Identify the correct order of the following enzymes used during the process of replication of eukaryotic DNA. (A). DNA polymerase (B). DNA ligase (C). DNA helicase (D). DNA gyrase Choose the correct answer from the options given below:
Options
- A(A), (B), (C), (D).
- B(D), (C), (A), (B).
- C(D), (A), (B), (C).
- D(C), (A), (B), (D).
Correct answer
B. (D), (C), (A), (B).
Step-by-step solution
The process of DNA replication involves a coordinated sequence of enzyme actions. DNA gyrase (acting as a topoisomerase) relieves the torsional strain and positive supercoiling generated ahead of the replication fork to facilitate the unwinding process. DNA helicase unwinds the DNA double helix by breaking the hydrogen bonds between complementary base pairs, creating the single-stranded templates at the replication fork. DNA polymerase catalyzes the polymerization of deoxynucleotides to synthesize the new complemen