Adding Nucleotides onto a Growing DNA Strand During DNA Replication

Multiple Choice

Adding nucleotides onto a growing DNA strand during DNA replication in cells occurs in ____.

A) the 5' ->3' direction for the leading strand and the 3' ->5' direction on the lagging strand
B) either the 5' ->3' direction or the 3' ->5' direction on both strands, depending on where replication begins
C) the 5' ->3' direction only
D) the 3' ->5' direction for the leading strand and the 5' ->3' direction on the lagging strand
E) the 3' ->5' direction only