allerySeparated DNA bands become visible after staining with:
AAmmonium chloride
BMagnesium sulphate
CEthidium bromide
DPotassium bromide
Answer & Solution
Correct answer: C. Ethidium bromide
1. Pure DNA cannot be seen in visible light.
2. Ethidium bromide binds the DNA in the gel.
3. Under ultraviolet light the bands glow orange.
_Source: syllabus Biology, Ch 9 'Biotechnology : Principles and Processes'_
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