Syndrome is a chromosomal disorder which causes delays in physical and intellectual development.
Of all the genetic disorders with chromosome abnormalities, Down s Syndrome has the highest rateof occurrence. Some 7,000 children were born with DS in the United States last year alone. Worldwide, approximately one out of 800 children is born with this condition. A child born with this condition will have some form of retardation, and usually other medical problems as well. More than one-third of these children develop heart disease.