Eric+T.

 Fragile X Syndrome is caused by the FMRI (Fragile X Mental Retardation 1) gene. FMR1 is located on the long arm of the x-chromosome,as seen below. For people with Fragile X, this x-chromosome is shut down and cannot produce protein. A father can give his daughter Fragile X when he gives her his x-chromosome. A father cannot give his son an infected x-chromosome because he does not give his son an x-chromosome, but rather a y-chromosome. When a girl has just one infected x-chromosome, her body shuts down that chromosome and she lives with just one operating x-chromosome. A girl with just one infected x-chromosome is not infected, but she is a carrier. But when a boy has an infected x-chromosome, his body cannot shut it down because it does not have another x-chromosome to live with. if the infected x-chromosome received is dominant, the boy is infected. If the chromosome is recessive, he is only a carrier.  Symptoms of Fragile X include: Most boys have mental impairment, whereas 1/3 to 1/2 of girls with Fragile X have learning disabilities, usually in Math. Emotional and behavioral problems are typical in both sexes with Fragile X. 20% of people with Fragile X have autism, others may display autism symptoms but are actually very social and interested in people. Blood testing for Fragile X Syndrome was started in 1992. It can be ordered by any physician. the test may cost several hundred dollars but is usually covered by health insurance. There is currently no cure for Fragile X Syndrome.
 * 1/4000 men are infected with Fragile X 1/6000 women are infected with Fagile X
 * 1/259 women are carriers 1/800 men are carriers
 * Mental impairment such as learning disabilities and mental retardation
 * attention deficit and hyperactivity
 * anxiety and an unstable mood
 * autistic behaviors
 * long face, large ears, and flat feet
 * Seizures and epilepsy affect 25% of people with Fragile X syndrome

media type="youtube" key="W62UzeTRin4" height="344" width="425" "Finding A Cure For Fragile X." __FRAXA__. Ed. Katie Clapp. 06 Feb. 2009. FRAXA Research Foundation. 7 Apr. 2009. Butt, Katie. "Treatment of Fragile X Synrdome." __Ikm.jmu.edu__. Autumn 2009. 7 Apr. 2009. "What is Fragile X Syndrome?" __Fragilex.org__. 2009. The National Fragile X Foundation. 7 Apr. 2009. Haldeman-Englert, Chad. "Fragile X Syndrome." __Aarp.org__. 24 June 2007. AARP. 7 Apr. 2009.