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Continuous and Dis-continuous Replication

OCR AS-level BiologyBiological MoleculesLesson 55 of 63

DNA can only be synthesised in the 5' to 3' direction.

This means that the DNA polymerase can only add nucleotides to the 3'OH group. So the strand can only grow in one direction.

An RNA polymerase synthesises an RNA primer on the DNA template.

Diagram

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