• Question: how were things like downs syndrome and autism made?

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      Asked by ashmcmath to Anaïs, Peter, Shreesha on 19 Mar 2015.
      • Photo: Peter Maskell

        Peter Maskell answered on 19 Mar 2015:

        downs syndrome is the presence of all or part of a third copy of chromosome 21.

        we are not sure exactly what causes autism.

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