| MGG | May-Grunwald-Giemsa [staining]; molecular and general genetics; mouse gammaglobulin; multinucleated ... |
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| Xp | paternal chromosome X; short arm of chromosome X |
| PAS | 1) Periodic Acid-Schiff Stain 2) Para-Amino-Salicyclic Acid &nbs... |
| BSC | bedside commode; bedside care; bench scale calorimeter; bile salt concentration; Biological Stain Co... |
| GMS | General Medical Service; geriatric mental state; Gilbert-Meulengracht syndrome; Gomori methenamine s... |
Zeune's law 맹인의 수는 적도에 가까운 열대지방에서 증가한다.
zidovudin
| BrDu-banding | The labeling of chromosomes in proliferating tissue by adding an excess of bromodeoxyuridine, which replaces the uridine incorporated in RNA and fluoresces in ultraviolet light; the bands result from sister chromatid exchanges. (05 Mar 2000) |
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| G-banding | <genetics> Chromosomes stained with certain dyes, commonly quinacrine (Q banding) or Giemsa (G banding), show a pattern of transverse bands of light and heavy staining that is characteristic for the individual chromosome. The basis of the differential staining, which is the same in most tissues, is not understood: each band represents 5-10% of the length, about 10exp7 base pairs, although this is not true for polytene chromosomes in Drosophila that show more than 4000 bands. (18 Nov 1997) |
| R-banding | See: R-banding stain. (05 Mar 2000) |
| C banding | <molecular biology> Method of defining chromosome structure by staining with Giemsa and looking at the banding pattern in the heterochromatin of the centromeric regions. Giemsa banding (G banding) of the whole chromosome gives higher resolution. Q banding is done with quinacrine. (18 Nov 1997) |
| reverse banding | <technique> A reverse Giemsa chromosome banding method that produces bands complementary to G-bands; induced by treatment with high temperature, low pH, or acridine orange staining; often used together with G-banding on human karyotype to determine whether there are deletions. (05 Mar 2000) |
| prometaphase banding | Banding done in the stage of mitosis intermediate between prophase and metaphase. (05 Mar 2000) |
| high-resolution banding | Banding, especially in prophase, which increases the clarity and number of discernible chromosome bands. (05 Mar 2000) |
| pulmonary artery banding | A surgical method of decreasing pulmonary blood flow and thereby volume overload of the left ventricle, alleviating CHF in certain congenital heart defects. (05 Mar 2000) |
| NOR-banding | A procedure which utilises a silver stain that preferentially accumulates in the nucleoli-organizing regions, i.e., the satellite regions of the acrocentric chromosomes. (05 Mar 2000) |
| 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) |
| 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) |
| accessory chromosome | A chromosome existing without its normal homologous chromosome; at the reduction division of gametogenesis an accessory chromosome is likely to be included in one daughter cell and not in the other, but may be lost completely by lagging behind on the equatorial plate. Synonym: monosome, odd chromosome, unpaired allosome, unpaired chromosome. (05 Mar 2000) |
| acentric chromosome | A fragment of a chromosome lacking a centromere and unable to attach to the mitotic spindle, therefore unable to take part in the division of a nucleus and randomly distributed in daughter cells. Synonym: acentric fragment. (05 Mar 2000) |
| acrocentric chromosome | A chromosome with the centromere placed very close to one end so that the short arm is very small, often with a satellite. (05 Mar 2000) |
| balanced chromosome | <genetics> A chromosome which is unable to pair with its homologue and participate in homologus recombination during meiosis because it contains several inversion mutations (that is, has segments which have become flip-flopped). (09 Oct 1997) |