PCR - Polymerase Chain Reaction

Image credit: Mark Danson, Wellcome Sanger Institute

This animation shows the steps in the polymerase chain reaction that scientists use to make lots of copies of a DNA sample.

The Polymerase Chain Reaction can copy a chosen stretch of DNA, making a large number of copies. Discover the vital role of DNA polymerase, other components required and the effect of thermal cycling in this process through this short animation.

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