Published by:
CGP EDU Academic Team
Published on: August 12, 2026
The separated DNA fragments can be visualised only after staining the DNA with a compound known as
A
triaryl methane followed by exposure to sunlight
B
ethidium bromide followed by exposure to UV radiation
C
nitrocellulose followed by exposure to UV radiation
D
ethidium bromide followed by exposure to gamma 
radiation
radiation
Text Solution
Verified by ExpertsThe correct answer is:
B
Ethidium bromide is commonly used as a non-radioactive marker to stain DNA in order to identify and visualise nucleic acid bands in electrophoresis and other gel based methods of nucleic acid separation. Stained DNA are visualised as bright orange coloured bands.
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