47,XYY  individuals  are  males  who are often tall but otherwise show
   normal phenotypes.
   Early  studies  suggested  a  possible  correlation between 47,XYY and
   antisocial  behavior  and  subnormal  intelligence,  but  most  47,XYY
   individuals do not know their karyotype and lead normal lives.

   Triple  X  (47,XXX)  individuals  are  females  who are often tall but
   otherwise  show  normal  phenotypes,  though some may exhibit abnormal
   secondary sex characteristics or learning disabilities.