7.1+DNA+Structure+and+Replication+(HL)

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Note that while polymerase constructs in a 5 to 3 prime direction, the strand being copied is from 3 to 5 prime.

EXCELLENT VIDEO ON REPLICATION media type="youtube" key="TNKWgcFPHqw" width="560" height="315"

And for those who wish for a more.. step by step guide: media type="youtube" key="gxeak5TuRIk" width="560" height="315"