A) DNA ligase
B) DNA pblymerase
C) topo-isomerase
D) swielases (helicase or unwindases)
Correct Answer: C
Solution :
The enzyme helicase unwinds the helix (by disrupting H bonds) while topo-isomerasie breaks and releases tension of strands of DNA. Topo-isomerases also takes part in recombination. DNA ligase helps in joining the Okazaki segments which form the lagging strand. DNA polymerase-I removes the RNA primer and helps in the formation of oligodeoxyribo nucleotide chain in its place for completing the replication.
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