Look up: XXX Syndrome

1. XXX syndrome
   XXX syndrome: A chromosome condition present in 1 in 1000 females, due to the presence of three X chromosomes rather than the usual two. The condition is associated with increased height but no malformations. Intelligence ranges from above normal to mild retardation. The average IQ is 85 to 90. Lear...
   Found on http://www.medterms.com/script/main/art.
   
   
2. XXX Syndrome
   A birth defect that affects approximately 1 in every 1,000 females. Research shows that approximately 7 girls are born daily with this condition. Each of the baby girl's cells will have an extra X chromosome in it. Generally, the extra chromosome will not cause any major abnormalities for the baby. ...
   Found on http://www.pregnology.com/AZ/X/1
   
   
3. XXXX syndrome
   XXXX syndrome: A chromosome disorder in females caused by the presence of four X chromosomes rather than the usual two. The disorder is characterized by decreased intelligence (IQ 30 to 80; average 55), speech and behavioral problems, tall stature and reduced fertility. Also known as tetra-X syndrome. Common Misspellings: xxxx syndrone
   Found on http://www.medterms.com/script/main/art.
   
   
4. XXXXX syndrome
   XXXXX syndrome: A chromosome disorder in females, caused by the presence of five X chromosomes rather than the usual two. It is characterized by decreased intelligence (IQ 20 to 75) and multiple malformations including upward-slanting palpebral fissures (eyeslits), heart defect, and small hands with...
   Found on http://www.medterms.com/script/main/art.