Parental origin of the extra chromosome
โ
R. E. Magenis; K. M. Overton; J. Chamberlin; T. Brady; E. Lovrien
๐
Article
๐
1977
๐
Springer
๐
English
โ 545 KB
Chromosome 21 fluorescent heteromorphisms were studied in 42 patients with Down's syndrome, their parents and their siblings. Included in this number are two instances of an aunt and niece affected with trisomy 21, and one of affected siblings. One case has a de novo 21/21 translocation. Blood group