Read the following statements about agarose gel electrophoresis and choose the incorrect option.

Easy

A

The agarose gel used in the technique is extracted from seaweeds
B

The DNA fragments are separated according to their size.
C

Separated DNA fragments can be visualised after staining with ethidium bromide followed by exposure to infrared rays
D

DNA fragments move from cathode to anode under the influence of an electric field

Solution

The DNA fragments are stained with ethidium bromide and exposed to UV light. They are visible as bright orange coloured bands.

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