Definition of Lagging Strand

The replication of DNA is a biological process that is mandatory for passing the characteristics onto the next generation. During this process, a copy of the molecule of DNA is made which replicates itself in order to give a double-stranded molecule. Both the strands of the DNA serve as a template through which the complementary strands are produced. The strands of DNA get split and form a replication fork.


The lagging strand is defined as that strand that grows in 3’-5’ direction. It is synthesized in the direction opposite to and away from the replication fork. It is synthesized in small fragments and hence is discontinuous. These fragments of DNA are known as Okazaki fragments.

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