Unwinding and replication ffi Continuous DNA synthesis begins at the 3' end of the broken nucleotide strand.

^ As the DNA molecule unwinds, the 5' end is progressively displaced.

Unwinding and replication

(c) Linear eukaryotic replication ffi At each fork, synthesis of the leading strand takes place continuously in the same direction as that of unwinding.


Unwinding and replication

Leading strand Lagging strand r*


2jThe lagging strand is synthesized

Leading strand Lagging strand

Unwinding and replication discontinuously in the direction opposite that of unwinding.

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