The primer used for DNA replication
A) is a short strand of RNA added to the 3´ end.
B) is needed only once on a leading strand.
C) remains on the DNA after replication.
D) ensures that there will be a free 5´ end to which nucleotides can be added.
E) is added to only one of the two template strands.

Question

Quizplus · Accepted Answer

The primer is needed only once on the leading strand because DNA synthesis is continuous in that direction, while on the lagging strand, multiple primers are needed for the synthesis of Okazaki fragments.

The Primer Used for DNA Replication