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Published online 11 April 2003 | Nature | doi:10.1038/news030407-10

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Autism links on chromosome 7

Revised DNA sequence homes in on break points.

A revamp of chromosome 7's DNA sequence has brought to light genes associated with autism, several leukaemias and lymphomas1.

Geneticist Stephen Scherer, of the University of Toronto, and his colleagues identified the site of more than 100 new mutations linked to genetic disorders after studying the genetic makeup of more than 300 new patients and reviewing 1,570 published studies.

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