a) The gel electrophoresis technique is very important in the field of biotechnology. It helps in cutting of desired DNA segment and the separation of the DNA fragments for biotechnology experiments.
• DNA being negatively charged moves towards anode, under electric field through a matrix or an agarose medium.
• DNA fragments separate according to their size.
• Smaller the size farther they tend to move
• The separated DNA fragments are stained with ethidium bromide and visualized by exposing them to UV radiation and are cut.
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