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' ?  (äw 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.


C

Biology & Microbiology

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