Home Biology Biotechnology Principles and Processes NCERT Examplar Which of the given statement is correct in t…
Biology Biotechnology Principles and Processes NCERT Examplar Single Correct MCQ
Published on: August 13, 2026

Which of the given statement is correct in the context of visualizing DNA molecules separated by agarose gel electrophoresis?

A
DNA can be seen in visible light
B
DNA can be seen without staining in visible light
C
Ethidium bromide stained DNA can be seen in visible light
D
Ethidium bromide stained DNA can be seen under exposure to UV light

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Text Solution

Verified by Experts
The correct answer is:
D

The separated DNA fragments (by the process of gel electrophoresis) are visualised after staining the DNA with ethidium bromide followed by exposure to UV-radiation. These fragments are seen as orange coloured bands.

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