一头小母牛的常染色体三体性
Autosomal trisomy in a heifer.
作者信息
Mäkinen A, Alitalo I, Alanko M
出版信息
Acta Vet Scand. 1987;28(1):1-8. doi: 10.1186/BF03548250.
Abstract
A malformed Ayrshire heifer had one additional autosome in all the lymphocyte metaphases studied. Chromosome banding techniques showed the karyotype of the calf to be 2n = 61, XX, +24. Slight prognathia of the lower jaw and peculiar abbrevations in the structure of the genitals were the most apparent anomalies, in addition to heart abnormalities, a poorly-closed urachus and slow growth rate.
摘要
一头畸形的艾尔夏小母牛在所有研究的淋巴细胞中期相中多了一条常染色体。染色体显带技术显示该小牛的核型为2n = 61，XX，+24。除心脏异常、脐尿管闭合不良和生长速度缓慢外，最明显的异常是下颌轻度前突和生殖器结构的特殊缩短。
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