Question

which enzyme is responsible for unzipping or the dna molecule when replication begins? dna breakase dna polymerase helicase primase

Explanation:

• DNA breakase: This is not a real enzyme in DNA replication.
• DNA polymerase: It synthesizes new DNA strands, not unzips.
• Helicase: Unwinds the DNA double - helix at the replication fork, acting like an unzipping enzyme.
• Primase: Synthesizes RNA primers, not involved in unzipping.

Answer:

Helicase