释义 |
DictionarySeesmearEncyclopediaSeegenetic testingbuccal smear
buc·cal smeara cytologic smear containing material obtained by scraping the lateral buccal mucosa above the dentate line, smearing, and fixing immediately; used principally for determining somatic sex as indicated by the presence of the sex chromocenter (Barr body).buccal smear A convenient way to obtain cells for chromosomal and other studies and to obtain a sample of DNA. The inside of the cheek is gently scraped with a spatula and the cells spread on a glass slide.buc·cal smear (bŭkăl smēr) Cytologic smear containing material obtained by scraping the lateral buccal mucosa above the dentate line, smearing, and fixing immediately; used principally for determining somatic sex as indicated by the presence of the sex chromocenter (Barr body). |