Q. DNA repairing is done by

A) Ligase
B) DNA polymerase-III
C) DNA-polymerase-II
D) DNA-polymerase-I
Explanation

DNA polymerase-I enzyme corrects mistakes in DNA by removing mismatched nucleotides. It has proof reading activity and hence used in DNA repairing.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.