Why is polyacrylamide gel is used in electrophoresis?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Why is polyacrylamide gel is used in electrophoresis?

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Electrophoresis is a widely used laboratory technique for separating and analyzing charged molecules such as DNA, RNA, and proteins. The sample mixture is applied to a gel matrix and an electric field is applied across the gel. The charged molecules move through the gel matrix towards the electrode of the opposite charge, with the speed of migration being determined by the size and charge of the molecule.

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