The subject of the first ever paper to appear in the journal _Genetics_, this phenomenon was proved by the 1916 work of Calvin Bridges and the 1921 efforts of Lydia Morgan, both of whom were studying 
The subject of the first ever paper to appear in the journal _Genetics_, this phenomenon was proved by the 1916 work of Calvin Bridges and the 1921 efforts of Lydia Morgan, both of whom were studying eye color in fruit flies. For ten points name this genetic mistake, which causes Patau's, Turner's and Down's syndromes, and which is the failure of chromatids to properly separate during meiosis, thus yielding abnormal numbers of chromosomes in a cell.
The subject of the first ever paper to appear in the journal _Genetics_, this phenomenon was proved by the 1916 work of Calvin Bridges and the 1921 efforts of Lydia Morgan, both of whom were studying eye color in fruit flies.
{Nondisjunction}