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easyMCQNEET 20172026Biology
4 marks (−1)

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

  1. A
    Bromophenol blue
  2. B
    Acetocarmine
  3. C
    Aniline blue
  4. D
    Ethidium bromide

Solution & Step-by-step Explanation

DNA fragments are colorless and cannot be seen on a gel directly. They are stained with Ethidium bromide (EtBr), which intercalates between DNA bases. When exposed to ultraviolet (UV) light, the DNA fragments appear as bright orange-colored bands.

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The DNA fragments separated on an agarose gel can be visualised after staining with:
A
Bromophenol blue
B
Acetocarmine
C
Aniline blue
D
Ethidium bromide

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BiotechnologyGel Electrophoresis

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