Published by:
CGP EDU Academic Team
Published on: August 13, 2026
After using Ethidium bromide (Et br) on the DNA fragments they are observed under ________________________ light and they are seen as ________________________.
A
infrared radiation, yellow coloured bands
B
UV radiation, orange coloured bands
C
-rays, blue coloured bands
D
radiowave, yellow coloured bands
Text Solution
Verified by ExpertsThe correct answer is:
B
Ethidium bromide (EtBr) intercalates into DNA.
When exposed to UV light, it fluoresces.
DNA bands appear as orange (fluorescent) coloured bands under UV illumination.
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