Question

Which role does the enzyme helicase play in DNA replication?
Responses

brings in new nitrogenous bases
brings in new nitrogenous bases

cuts new DNA strands away from old
cuts new D N A strands away from old

unwinds the two DNA strands
unwinds the two D N A strands

checks for mistakes in replication

Answer 1

The role of the enzyme helicase in DNA replication is to **unwind the two DNA strands**.