Aberrations Of Sex Chromosomes

Although rare, cases with a 48, XXXX and 49, XXXXX karyotype have already been described. The phenotype is not uniform. The risk of mental retardation and congenital abnormalities increases with the number of chromosomes significantly, especially if there are ‘third The genetic imbalance in early embryonic life can cause pathological development. Approximately 1 in 1,000 apparently normal women have a 47, XXX (trisomy X) karyotype. Physical abnormalities are rare. Menstrual…

September 3, 2018