In agarose and polyacrylamide gel electrophoresis, DNA and RNA do not inherently exhibit visible color or readily detectable fluorescence signals; therefore, nucleic acid stains are required for band visualization. Major classes of nucleic acid dyes differ substantially in binding mechanism, ...
Ethidium bromide (EtBr) is a classical fluorescent dye widely used in molecular biology research. Its chemical structure consists of a tri-benzimidazole, which can intercalate between the base pairs of DNA or RNA, significantly enhancing its fluorescence signal. Initially discovered as a ...
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