it is used in gel electrophoresis.....for the separation of DNA
fragments
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For larger molecules like proteins we use polyacrylamide gel
electrophoresis (PAGE). For smaller pieces like DNA we use agarose
gel electrophoresis
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its starch ,agarose and polyacrylamide by mkhaliphi dlamini
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The migration of DNA/Protein on the gel (agarose/polyacrylamide) by the influence of electric charge is called gel electrophoresis. It is used to resolve the biomolecules according to their size(mainly) and shape(for proteins)