Mitotic cycles in human cell strains with sex chromosomes aneuploidy

Abstract
A persistence of the embryonic type of mitotic cycle was found in postnatal strains with aneuploidy of sex chromosomes (45,X; 47,XXX; 49,XXXXX;47,XYY;49,XXXXY). Life-span and proliferating activity of the strains did not differ from those of diploid postnatal cells.