Gel Electrophoresis: How Does It Work - Purdue University
gel The gel is held in the casting tray. It provides a place to put the small particles you wish to test. The gel contains pores that allow the particles to move very slowly toward the oppositely charged side of the chamber. At first, the gel is poured in the tray as a hot liquid. As it cools, however, the gel solidifies. comb
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