Trisomy 21 mosaicism in two successive generations in a family

J C Parke, F S Grass, R Pixley, J Deal
1980 Journal of Medical Genetics  
The occurrence of 46,XX/47,XX,+21 mosaicism in two successive generations implies an aetiological relationship between the 47,XX, +21 cell line of the mother and her daughter.
doi:10.1136/jmg.17.1.48 fatcat:ddqi5wieurabvpzh2ylkbh3j7a