> For the complete documentation index, see [llms.txt](https://docs.abi.am/abi-omicss-guide-2021/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.abi.am/abi-omicss-guide-2021/week-5/experimental-techniques/gel-electrophoresis.md).

# Gel Electrophoresis

**Gel electrophoresis** is a technique used to separate DNA fragments according to their size. 

To learn more about this concept, first, watch the video below.

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

Now, read [this article](https://www.khanacademy.org/science/ap-biology/gene-expression-and-regulation/biotechnology/a/gel-electrophoresis), and return here afterward.

Additionally, watch this video.

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

## Congratulations!

If you made it here, then congratulations! You have successfully completed this section. Move to the next portion of the guide with the arrow buttons below.