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Name the material used as matrix in gel-...

Name the material used as matrix in gel-electrophoresis and mention its role.

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Agarose a polymer exactracted from sea-weeds is used as a matrix in gel electrophoresis.
It is used because DNA fragments resolve according to their size through sieving effect provided by the agarose gel.
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XII BOARDS PREVIOUS YEAR-XII BOARDS-SET 1 [COMPTT]
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  18. Describe any two modes by which apomictic seeds and be produced.

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