The DNA fragments separated on an agarose gel can be visualised after staining with:

Bromophenol blue

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Acetocarmine

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Aniline blue

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Ethidium bromide

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Solution

The correct option is D Ethidium bromide
The DNA fragments can be visualized by staining with ethidium bromide (Added in the gel during gel preparation), followed by exposure to ultraviolet rays.

Bromophenol blue is used as a pH indicator.

Acetocarmine is used to stain nucleic acid inside cells.

Aniline blue stain helps in visualization of callose in plant’s cell walls.

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