Bloomington is a city in McLean County, Illinois, United States and the county seat. It is adjacent to Normal, Illinois, and is the more populous of the two principal municipalities of the Bloomington-Normal metropolitan area. When mentioned together, they are known as the Twin Cities, Bloomington-Normal, B-N, Blo-No, or BNorm.
Hypersomnia, or hypersomnolence, is a neurological disorder of excessive time spent sleeping or excessive sleepiness. It can have many possible causes and can cause distress and problems with functioning. In the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders, (DSM-5), hypersomnolence, of which there are several subtypes, appears under sleep-wake disorders.
Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate properly during cell division.he term sex chromosome aneuploidy summarizes conditions with an abnormal number of sex chromosomes, i.e. other than XX (female) or XY (male). Formally, X chromosome monosomy (Turner syndrome, see above) can also be classified as a form of sex chromosome aneuploidy.