Down Syndrome: Symptoms & Causes

Down syndrome is a genetic condition where a person has an extra copy of chromosome 21 for a total of 47 chromosomes instead of 46.

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Down Syndrome: Causes, Types, and Symptoms

I've heard people saying down syndromes are always little in height. I'm 5 ft 4. Is that normal for downs? - Quora

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Indore: Seven-Year-Old Boy With Down Syndrome Scales Mount Everest With Father

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Down Syndrome: Causes, Types, and Symptoms

Down syndrome - Symptoms and causes - Mayo Clinic