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DNA and RNA Structure

Question 2 • AFC AP Biology B2

The is made continuously because it is synthesized in the direction the replication fork is moving.

Answer
A
Leading strand
B
Lagging strand
C
Origin of replication

Explanation

The leading strand is synthesized continuously as the replication fork moves forward. DNA polymerase builds the new strand in the 5′ to 3′ direction, which on the leading strand matches the direction the fork is moving. The lagging strand is made in short fragments instead.

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