Question
Biology Question on DNA Replication
Enzyme used in DNA replication is
A
DNA ase
B
DNA polymerase
C
reverse transcriptase
D
DNA photolyase
Answer
DNA polymerase
Explanation
Solution
Enzymes catalysing DNA synthesis (DNA replication) on a DNA template are DNA polymerases. An enzyme breaking the internal phosphodiester bonds in a DNA molecule is endonuclease. The nuclease enzyme which start cleavage from free end of DNA is called exonuclease whereas, RNA polymerase catalysing RNA synthesis during transcription.