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

The DNA fragments separated on an agarose gel can be visualised after staining with:
  1. Bromophenol blue
  2. Acetocarmine
  3. Aniline blue
  4. Ethidium bromide

Solution

The DNA fragments separated on an agarose gel can be visualised after staining with ethidium bromide. It is an intercalating agent and a fluorescent agent. The stained DNA fragments are seen as bright orange-coloured bands under UV light. Intercalation is the insertion of molecules between the planar bases of DNA. This process is used as a method for analysing DNA. 

Asked in: NEET 2017

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