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Q. Which of the following enzyme is used in DNA multiplication?

Delhi UMET/DPMTDelhi UMET/DPMT 2005

Solution:

Enzymes catalysing DNA synthesis (DNA replication) on DNA strand are DNA polymerases. They catalyse the $S \rightarrow 3$ polymerization. An enzyme breaking the internal phosphodiester bonds in a DNA molecule is endonuclease whereas the nuclease enzyme which starts cleavage from free-end of DNA is called exonuclease. RNA polymerase catalysing RNA synthesis during transcription.