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Prepares students to set up and run an electrophoresis chamber. Concentrates on the functions and uses of the equipment. Compares horizontal and vertical systems, demonstrating each and discussing which type is better for DNA and which for proteins. Time lapse photography shows electrophoresis of both DNA and protein, and the video explains how to analyze the molecular weight of an unknown sample. 18 minutes. An excellent aid to visualizing and understanding the procedures involved in electrophoresis, a powerful tool for the separation and analysis of nucleic acids and proteins. Especially useful for viewing by novices before they conduct their first electrophoresis lab, or as a starting point for lengthy discussions of the subject.