Question : The enzyme which catalyses the unwinding of DNA helix during replication is:
Option 1: Primase
Option 2: Topoisomerase
Option 3: Helicase
Option 4: DNA polymerase
Correct Answer: Helicase
Solution : The correct option is Helicase.
Catalysing the unwinding of the DNA helix during replication is an enzyme called DNA helicase. As a result of its ability to break hydrogen bonds between complementary base pairs, DNA helicase is crucial to DNA replication because it permits DNA strands to split, and provides templates for new strand composition.
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