What is agarose?

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(A) Agarose is a natural polymer extracted from seaweeds (red algae like Gelidium and Gracilaria). Chemically,it is a linear polysaccharide made up of

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Polysaccharide

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(A) Agarose is a natural polymer extracted from seaweeds (red algae like Gelidium and Gracilaria). Chemically,it is a linear polysaccharide made up of repeating units of agarobiose (a disaccharide of $D$-galactose and $3,6-$anhydro-$L$-galactopyranose). In biotechnology,it is widely used as a matrix in gel electrophoresis to separate $DNA$ fragments based on their size.

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