NEET Previous Year Question
In gel electrophoresis, separated DNA fragments can be visualized with the help of:
Topic: NEET PYQ
Answer: A. Full step-by-step solution below.
- AEthidium bromide in UV radiation
- BAcetorarmine in UV radiation
- CEthidium bromide in infrared radiation
- DAcetocarmine in bright blue light
Correct answer: A
Solution
(a) The cutting of DNA by restriction endonucleases results in the fragments of DNA. These fragments can be separated by a technique known as gel electrophoresis. 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.More Biotechnology: Principles & Processes PYQs
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