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why are basic stains (that carry a positive charge) better

why are basic stains (that carry a positive charge) better
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Basic stains are those stains which have basic pH.

Basic stains are positively charged non biological compounds mainly used for the DNA.

These dyes are positively charged proteins binds with the negatively charged DNA molecule because DNA is negatively charged. due to the opposite charge interaction dyes can bind more tightly with the DNA. High bindng leads to high and specific observable results.

Dyes are used in electrophoresis experiment, spectrophotometry and various other studies.

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