fluorescence plus Giemsa stain

fluor·es·cence plus Giem·sa stain

(gēm'sa),
a stain used to demonstrate sister chromatid exchange; cells are grown in 5-bromodeoxyuridine, followed by chromosome preparation, staining in Hoechst 33258, exposure to light, and staining in Giemsa; chromosomes exhibit a harlequin appearance.
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