M.Sc. Bio-Chemistry (PU-CET P.G) 2019 Panjab University Entrance Exam With Answers

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24.

Out of the following mentioned chemical reactivity, which one best describes the action of DNA ligases;

A: DNA ligase is a polymerase
B: DNA ligase catalyzes oxidation –reduction reaction
C: DNA ligase catalyzes formation of a phophoester bond
D: DNA ligase catalyzes the hydrolysis of a peptide bond

The answer is: C