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In gel electrophoresis, separated DNA fragments can be visualized with the help of

Options

  1. AEthidium bromide in UV radiation
  2. BAcetocarmine in UV radiation
  3. CEthidium bromide in infrared radiation
  4. DAcetocarmine in bright blue light

Correct answer

A. Ethidium bromide in UV radiation

Step-by-step solution

The DNA fragments separated by gel electrophoresis can be visualized only after staining the DNA with a compound known as ethidium bromide followed by exposure to UV radiation. Pure DNA fragments in the visible light and without staining cannot be observed. DNA when stained with ethidium bromide appears bright orange bands under UV radiations.

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