Autism Linked To Absence of a Cluster of Genes

Dr Wigler suggested the missing cluster is a 27-gene grouping on chromosome 16.

Most people have two sets of the cluster – individuals with autism have only one, or just fragments of the second, the researchers say.

Now Dr Wigler’s colleague, Alea Mills, has found the deleted gene cluster not only plays a role in the condition but also may affect head-size, certain behaviours and the shape of structures within the brain itself.

She still has to definitively prove the missing sequence has a hand in causing the condition.

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