In gel electrophoresis, the separated DNA fra | vedclass

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(D) In gel electrophoresis, $DNA$ fragments are separated based on their size through a gel matrix (usually agarose). Since $DNA$ is colorless, it can

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Ethidium bromide

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(D) In gel electrophoresis, $DNA$ fragments are separated based on their size through a gel matrix (usually agarose). Since $DNA$ is colorless, it cannot be seen directly. To visualize the separated $DNA$ fragments, the gel is stained with a fluorescent dye called $Ethidium bromide$ $(EtBr)$. After staining, when the gel is exposed to $UV$ radiation, the $DNA$ bands appear as bright orange-colored bands.

In gel electrophoresis, the separated $DNA$ fragments can be visualized only after staining the $DNA$ with a compound known as ............. followed by exposure to $UV$ radiation.

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