Home Biology Biotechnology Principles and Processes Previous Year Questions Upon exposure to UV radiation, DNA stained w…
Biology Biotechnology Principles and Processes Previous Year Questions Single Correct MCQ
Published on: August 13, 2026

Upon exposure to UV radiation, DNA stained with ethidium bromide will show

A
Bright orange colour
B
Bright red colour
C
Bright blue colour
D
Bright yellow colour

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Text Solution

Verified by Experts
The correct answer is:
A

In gel electrophoresis the separated DNA fragments can be visualized only after staining the DNA with a compound known as ethidium bromide followed by exposure to UV radiation. Bright orange coloured bands of DNA can be seen when stained with ethidium bromide and exposed to UV light.

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