When scientists want to study DNA they have to use a special technique called gel electrophoresis. Gel electrophoresis is used for the separation of deoxyribonucleic acid (DNA), ribonucleic acid (RNA), or protein molecules using an electric field applied to a gel matrix. The pictures below show the equipment used in gel electrophoresis.

Use the interactive exercise below to learn how scientists use gel electrophoresis equipment.

Directions: Follow the written steps by clicking on the "Forward" arrow to the lower right of the graphic. Take notes on how each piece of equipment and material are used.

Gel Electrophoresis Virtual Lab