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Biotechnology: Principles and Processes — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYBiotechnology: Principles and Processes2 Marks
Question
How does one visualise DNA on an agarose gel?
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Answer

A compound called Ethidium Bromide stains DNA, which on irradiating with Ultraviolet, fluoresce gives orange light. Hence, DNA fragments appear as orange band in the presence of Ethidium Bromide and UV.

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