Definition: a selective cytochemical reaction for DNA in which sections or cells are first hydrolyzed with hydrochloric acid to produce apurinic acid and then are stained with Schiff reagent to produce magenta-stained nuclei; generally the concentration of DNA in nucleoli and mitochondria is too low to permit detection by this stain
See Also: Kasten fluorescent Feulgen stain
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Examples: glitazone, GI cocktail, etc.