One of the most common methods for separating and visualizing biological molecules in the lab is called gel electrophoresis. The word “electrophoresis” means carried by electricity, and during gel electrophoresis, an electric field propels molecules through a gel. 

Teaching DNA gel electrophoresis in the classroom is a perfect gateway to the broad fields of biotechnology and biomedical science.  Browse our resources below to teach and learn the principles of gel electrophoresis.