http://www.worldrettsyndrome2008.org/autism-spectrum-disorder Fri, 18 Jun 2010 02:18:22 +0000 hourly 1 http://wordpress.org/?v=3.0 http://www.worldrettsyndrome2008.org/autism-spectrum-disorder/comment-page-1#comment-7 Blueberryflowers Sun, 04 Jan 2009 09:34:28 +0000 http://www.worldrettsyndrome2008.org/autism-spectrum-disorder#comment-7 It is interesting to know but I don't know if any one here knows about it inform us. It is interesting to know but I don't know if any one here knows about it inform us.

]]> http://www.worldrettsyndrome2008.org/autism-spectrum-disorder/comment-page-1#comment-6 andresrocha62 Sun, 04 Jan 2009 07:59:00 +0000 http://www.worldrettsyndrome2008.org/autism-spectrum-disorder#comment-6 Most individuals with Rett syndrome are female. Because the disease-causing gene is located on the X chromosome, a female born with a MECP2 mutation on her X chromosome has another X chromosome with an ostensibly normal copy of the same gene, while a male with the mutation on his X chromosome has no other X chromosome, only a Y chromosome; thus, he has no normal gene. Most individuals with Rett syndrome are female. Because the disease-causing gene is located on the X chromosome, a female born with a MECP2 mutation on her X chromosome has another X chromosome with an ostensibly normal copy of the same gene, while a male with the mutation on his X chromosome has no other X chromosome, only a Y chromosome; thus, he has no normal gene.

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