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Which of the given statements is correct in the context of visualizing DNA molecules separated by agarose gel electrophoresis?

Options

  1. ADNA can be seen in visible light
  2. BDNA can be seen without staining in visible light
  3. CEthidium bromide-stained DNA can be seen in visible light
  4. DEthidium bromide-stained DNA can be seen under exposure to UV light

Correct answer

D. Ethidium bromide-stained DNA can be seen under exposure to UV light

Step-by-step solution

The separated DNA fragments can be visualised only after staining the DNA with a compound known as ethidium bromide followed by exposure to UV radiation.

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