title: Variation in human acrocentric chromosomes with acridine orange reverse banding.
abstract: Twenty-five normal subjects were studied by acridine orange reverse (RFA) banding in order to obtain a preliminary estimate of the type and frequency of variations in color and length. Color variations were classified into 1 of 6 colors and size variations into 1 of 5 levels. The same cells were also studied by Q banding. Acridine orange reverse banding was found to be more useful than Q banding for characterizing variations in chromosomes 14, 15, 21 and 22. In addition, it was found that there was no consistent relationship between pale or bright Q banding and the various colors observed with RFA banding. For the optimal characterization of a chromosomal variation, multiple banding technics, including RFA banding, are necessary.
mesh_terms: D000166:Acridines; D000328:Adult; D002875:Chromosomes / Q000032:analysis*; D002901:Chromosomes, Human, 13-15; D002904:Chromosomes, Human, 21-22 and Y; D005260:Female; D005456:Fluorescent Dyes; D006801:Humans; D008297:Male; D008875:Middle Aged; D011797:Quinacrine Mustard; D013194:Staining and Labeling
chemical_list: D000166:Acridines; D005456:Fluorescent Dyes; D011797:Quinacrine Mustard