CLAUDIA STOCKER / SCIENCE PHOTO LIBRARY CLAUDIA STOCKER / SCIENCE PHOTO LIBRARY
Gel electrophoresis, illustration. Gel electrophoresis is a technique used to analyse the molecular composition of DNA (deoxyribonucleic acid) samples. The extracted DNA is placed into a gel, which then has an electrical current passed through it that separates the DNA molecules based on their size and charge. The technique is also used to analyse the protein composition of cells and tissues.
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