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The following photograph shows the resul...

The following photograph shows the result of a technique showing the separation of DNA.
(a) Name the technique.
(b) How the separated DNA is visualized?
(c) DNA fragments of size 500 bp, 1600 bp and 2000 bp are separated by this process. Which fragment will migrate fast. Why?

Text Solution

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(a) Gel electrophoresis.
(b) The separated DNA fragments are stained with fluorescent dye-Ethidium bromide. On exposure to UV radiation, these DNA fragments are viewed as orange bands.
(c) DNA fragment of size 500 bp migrates faster as movement depends on the molecular weight, lesser the weight, faster the movement.
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