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DNA strands on a gel stained with ethidium bromide when viewed under UV radiation, appear as:

Option: 1

Yellow bands


Option: 2

Bright orange bands


Option: 3

Dark red bands


Option: 4

Bright blue bands


Answers (1)

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DNA strands on a gel stained with ethidium bromide when viewed under UV radiation, appear as Bright orange bands as EtBr absorbs UV radiations at 210-285nm wavelength and get excited at 605 nm due to which it flourescence orange colour. 

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