title: The XYY syndrome.
mesh_terms: D000328:Adult; D003878:Dermatoglyphics; D004562:Electrocardiography; D004569:Electroencephalography; D005298:Fertility; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics; D007361:Intelligence Tests; D007621:Karyotyping; D007713:Klinefelter Syndrome / Q000175:diagnosis; D008297:Male; D008540:Meiosis; D010551:Personality; D012729:Sex Chromosome Aberrations / Q000097:blood / Q000175:diagnosis*; D012917:Social Adjustment; D013737:Testis / Q000473:pathology