Question

required information
the enzyme _______ unzips and unwinds the dna molecule.
multiple choice
dna polymerase
helicase
primase
dna ligase

Explanation:

Helicase is the enzyme that unwinds and unzips the DNA double - helix by breaking the hydrogen bonds between base pairs during DNA replication. DNA polymerase synthesizes new DNA strands, primase synthesizes RNA primers, and DNA ligase joins Okazaki fragments.

Answer:

B. helicase