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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Biotechnology in health care applies biological organisms, cells or enzymes to diagnose and treat disease. The subject includes recombinant DNA, genetically engineered insulin, vaccines, antibiotics, monoclonal antibodies, gene therapy and techniques such as polymerase chain reaction, while distinguishing therapeutic applications from agricultural and industrial biotechnology.
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