A female norway rat,Rattus norvegicus, with x0 sex chromosome constitution

✍ Scribed by H. S. Yong; S. S. Dhaliwal; K. L. Teh

• Publisher: Springer
• Year: 1989
• Tongue: English
• Weight: 519 KB
• Volume: 76
• Category: Article
• ISSN: 0028-1042
• DOI: 10.1007/bf00366216

✦ Synopsis

Man and the great majority of mammals have the common XX/XY sex chromosome mechanism. However, in addition to species with complex sexchromosome systems, individuals with deviating sex chromosome constitutions have been reported in man and in at least 16 mammalian species with the normal XX/XY mechanism [1]. The commonest types of deviation are XXY, XYY, and XX in individuals with male phenotype, and X0, XXX, and XY in individuals with female phenotype. Of these, the X0 condition appears to be the most common, having been reported in man and 11 species of mammals [1]. In man, the X0 condition leads to Turner syndrome [2]. On the other hand, X0 female mice are fertile [3, 4] but have a considerably shorter re-