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Gel electrophoresis is a powerful technique used to quickly analyze samples for variations in the DNA molecules they contain. While not nearly as precise as decoding an entire genome, gel electrophoresis uses molecular variability to match biological samples to their sources with a great deal of accuracy. However, as this video from the University of Leicester demonstrates, the technique is only as good as the procedures used to conduct the analysis.
This media asset was adapted from GENIE, Centre for Excellence in Teaching and Learning in Genetics, and University of Leicester Multimedia Services.