Tetra-X-syndrome

What is Tetra-X-syndrome?

Tetra-X-syndrome meaning 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.

 

reference: national Cancer Institute – Glossary for Registrars

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