The role of helicase in DNA replication is to separate the two strands of the double helix by breaking the hydrogen bonds between the nitrogenous base pairs. This allows the DNA strands to unwind and expose the nucleotide sequence for replication. Helicase is the first enzyme to load onto the replication origin and plays a crucial role in the initiation of DNA replication. Based on the information provided, the correct answer would be: c) Both I and II are correct.
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