Multiple Choice
During DNA replication, what enzyme is responsible for “unzipping” the double helix by separating the two DNA strands at the replication fork?
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8. DNA Replication
Overview of DNA Replication
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In the overview of DNA replication, what is the primary role of DNA polymerase?
A
It unwinds the DNA double helix ahead of the replication fork by breaking hydrogen bonds.
B
It joins Okazaki fragments together by forming phosphodiester bonds between them.
C
It lays down short RNA primers to provide a free 3′ hydroxyl group for DNA synthesis.
D
It synthesizes a new DNA strand by adding nucleotides to the 3′ end using the template strand.
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