| http://www.w3.org/ns/prov#value | - And why are some people with Down syndrome minimally affected, while others are more severely retarded? ?By looking at the organization of the genes on chromosome 21 and how they and their protein products function, scientists can find clues about Down syndrome as well as other disorders, including Alzheimer's disease, certain cancers and manic depressive illness, which have also been linked to th
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