# Polymerase Chain Reaction (PCR)

The **polymerase chain reaction (PCR)** is a remarkable and very powerful way to copy DNA and make, in fact, as many copies of DNA as you want to, with a really simple but powerful technique.

To learn about how this technique works and where it is being used, review the following content and return here afterward.

* [Polymerase Chain Reaction - Introduction to Genomic Technologies offered by Johns Hopkins University](https://www.coursera.org/lecture/introduction-genomics/polymerase-chain-reaction-c7c2T)
* [Polymerase Chain Reaction article by KhanAcademy](https://www.khanacademy.org/science/ap-biology/gene-expression-and-regulation/biotechnology/a/polymerase-chain-reaction-pcr)

Also, watch the video below.

{% embed url="<https://youtu.be/c07_5BfIDTw>" %}

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