Under UV illuminator, DNA bands are seen in agarose gel due to which of the following?
Correct answer: C. Fluorescent dye
- A. Agarose
- B. Charge in DNA
- C. Fluorescent dye
- D. Radioactive dye
Explanation
Fluorescent dyes, also known as reactive dyes or fluorophores are used for locating dna bands. Fluorescence is used in biology as a non-destructive way of analysing biological molecules, even at low concentrations, by means of the molecule's intrinsic fluorescence, or by attaching it with a fluorophore therefore dna bands can easily be seen.
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