DNA Replication - Medical Science

Q1:

Which of the following repairs nicked DNA by forming a phosphodiester bond between adjacent nucleotides?

A Helicase

B DNA gyrase

C Topoisomerases

D DNA ligase

ANS:D - DNA ligase

DNA ligase helps in the formation of a phosphodiester bond between adjacent 3' hydroxyl and 5' phosphate termini in DNA.