Down syndrome IS a genetic disorder. https://en.wikipedia.org/wiki/Down_syndrome https://en.wikipedia.org/wiki/Down_syndrome http://www.mayoclinic.org/diseases

Down syndrome IS a genetic disorder. https://en.wikipedia.org/wiki/Down_syndrome https://en.wikipedia.org/wiki/Down_syndrome http://www.mayoclinic.org/diseases-conditions/down-syndrome/symptoms-causes/dxc-20337347 http://www.mayoclinic.org/diseases-conditions/down-syndrome/...