what does gel electrophoresis mean in biology?
<answer> In biology, Gel electrophoresis is a method for separation and analysis of macromolecules and their fragments, based on their size and charge. <context> Gel electrophoresis is a method for separation and analysis of macromolecules and their fragments, based on their size and charge. It is used in clinical chemistry to separate proteins by charge and/or size and in biochemistry and molecular biology to separate a mixed population of DNA and RNA fragments by length, to estimate the size of DNA and RNA fragments or to separate proteins by charge. Nucleic acid molecules are separated by applying an electric field to move the negatively charged molec