Home Biology Biotechnology Principles and Processes Previous Year Questions In gel electrophoresis, separated DNA fragme…
Biology Biotechnology Principles and Processes Previous Year Questions Single Correct MCQ
Published on: August 21, 2026

In gel electrophoresis, separated DNA fragments can be visualized with the help of:

A
Ethidium bromide in UV radiation
B
Acetorarmine in UV radiation
C
Ethidium bromide in infrared radiation
D
Acetocarmine in bright blue light

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The correct answer is:
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.

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