Autism study validates importance of spontaneous causal mutations and sheds new

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ScienceDaily (2011-06-08) -- A clinically extensive and mathematically powerful

study of 1000 families with one autistic child and one unaffected sibling has

validated a controversial theory of autism's complex genetic causation. The

study for the first time estimates the minimum number of locations in the human

genome -- 250 to 300 -- where gene copy number variation (CNV) can give rise to

autism spectrum disorder (ASD). It also sheds new light on the long observed but

little understood " gender bias " of autism.

http://www.sciencedaily.com/releases/2011/06/110608122543.htm