Feulgen stain


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Feul·gen stain

(foyl'gen),
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.

Feulgen stain

(foyl′gĕn)
[Robert Joachim Feulgen, Ger. chemist, 1884–1955]
A histological stain used to identify chromosomal banding and DNA.