The DNA fragments separated on an agarose gel can be visualized after staining with:
Correct answer: C. Ethidium bromide
- A. Acetocarmin
- B. Aniline blue
- C. Ethidium bromide
- D. Bromophenol blue
Explanation
The separated DNA fragments can be seen only after staining them with a compound known as ethidium bromide (EtBr) followed by exposure to UV radiation as bright orange coloured bands.
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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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