| Q-banding | <cell biology, technique> A fluorescent stain for chromosomes which produces specific banding patterns for each pair of homologous chromosomes. The acridine dye derivative, quinacrine hydrochloride, or other derivatives like quinacrine mustard dihydrochloride produces a green-yellow fluorescence at pH 4.5 in chromosome segments rich in constitutive heterochromatin with deoxyadenylate-deoxythymidilate (A-T) bases of DNA. The centromeric regions of human chromosomes 3, 4, and 13 are specifically stained, as are satellites of some acrocentric chromosomes and the end of the long arm of the Y chromosome. Banding patterns are similar to those obtained with G-banding stain and similar fluorescent stain results are seen with the antibiotics adriamycin and daunomycin, as well as the tertiary dyes butyl proflavine and dapi, and the bisbenzimidazole dye hoechst 33258. See: banding patterns, Q bands, quinacrine. Synonym: quinacrine chromosome banding stain. (12 Jul 2000) |
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| quinacrine chromosome banding stain | q-banding stain |
| telomeric R-banding stain | <technique> A modified R-banding stain in which the telomeres become strongly stained and faint R-banding still occurs over the rest of the chromosomes; uses air-dried slides, aging for several days, and staining in hot phosphate-buffered Giemsa stain. (05 Mar 2000) |
| Trusler's rule for pulmonary artery banding | A method that gives guidance as to the correct tightness of the band; the degree of banding for a complex congenital cardiac anomaly with bidirectional shunting less than that for simple ones. (05 Mar 2000) |
| trypsin G-banding stain | <technique> A unique chromosome staining technique, used in human cytogenetics to identify individual chromosomes, which produces characteristic bands. It utilises acetic acid fixation, air drying, denaturing chromosomes mildly with proteolytic enzymes, salts, heat, detergents, or urea, and finally Giemsa stain; chromosome bands appear similar to those fluorochromed by Q-banding stain. Synonym: Giemsa chromosome banding stain. (05 Mar 2000) |
| banding |
An undesirable graphic effect in which a gradation contains visible stepping of shades.
출처: www.rainwater.com/glossary/b.html
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| banding |
The placement of a numbered metal band on the leg (or less commonly) wing of a bird in an effort to individualize the bird and thereby discover certain facts of its life history. To legally band Purple Martins (or any species of native wild bird) a person must have both state and federal bird banding permits.
출처: www.purplemartin.org/main/Terminology.html
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| banding |
Making the pulmonary artery narrower with a band to reduce blood flow to the lungs.
출처: www.childrens-heart-fed.org.uk/terms.htm
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| banding |
The series of darkly and lightly stained stripes across a chromosome produced by a variety of chemical treatments. Each chromosome has its own characteristic banding pattern which allows specific identification of chromosomes or parts of chromosomes.
출처: www.agsa-geneticsupport.org.au/glossary.html
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| banding |
An artefact of colour gradation in computer imaging. When graduated colours break into larger blocks of a single colour, the smooth look of a proper gradation is reduced.
출처: www.all-things-photography.com/digital-dictionary....
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