Genotype % Births Symptoms
47, XXY 0.2 male atrophic tubules, gynecomastia, mental retardation (Klinefelter's syndrome)
45, XO 0.01 female ovarian dysgenesis (streak gonad), short stature (Turner's syndrome)
47, XYY 0.1 male tallness, acne, low intelligence, antisocial behavior ("super male")