title: Structural abnormalities of the X-chromosome in a heifer.
abstract: Structural chromosome abnormalities, some of them unusual, were found in 18 (36%) of 50 photomicrographed mitotic cells of a blood lymphocyte culture from a three month old Holstein heifer affected with chronic tympanism of the rumen. The aberrations involved more specifically the X-chromosome. The etiology of the anomalies and the cause of their X-chromosome propension are of unknown nature.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000235:genetics*; D005260:Female; D012729:Sex Chromosome Aberrations / Q000662:veterinary*; D013272:Stomach Diseases / Q000235:genetics / Q000662:veterinary*; D014960:X Chromosome