AP Biologyeasymcq1 pt
What does helicase do during replication?
A.Unwinds the double helix
B.Joins Okazaki fragments
C.Adds nucleotides to the new strand
D.Lays down RNA primers
Explanation
Core Concept
Helicase breaks the hydrogen bonds between base pairs at the replication fork, opening the template strands for polymerases.
Correct Answer
AUnwinds the double helix
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