DNA replication

 

DNA replication

DNA replication

This 3D animation shows you how DNA is copied in a cell. It shows how both strands of the DNA helix are unzipped and copied to produce two identical DNA molecules.

DNA replication

This 3D animation shows you how DNA is copied by the cell, a process called DNA replication.

We start by seeing the DNA double helix being unzipped to form a replication fork. We then follow DNA polymerase as it copies the DNA in the 5โ€™ to 3โ€™ direction using the existing DNA as a template. The leading strand is constructed in a continuous fashion while the lagging strand is made discontinuously, in a series of short fragments of DNA called Okazaki fragments.

Age: 14 years+ (KS4 +)

This page was last updated on 2021-07-21

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