A) DNA ligase
B) DNA polymerase
C) topo-isomerase
D) swielases (helicase or unwindases)
Correct Answer: C
Solution :
The enzyme helicase unwind the helix (by disrupting H bonds) while topo-isomerase break and release tension of strands of DNA. Topo-isomerase also take part in recombination. DNA ligase : help in joining the Okazaki segments which forms the lagging strand. DNA polymerase-1 : removes the RNA primer and helps in the formation of oligodeoxyribonucleotide chain in its place for completing the replica chain.
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