Down Syndrome, a chromosome abnormality is present in all ethnicity, social economic classes, and gender. In Britannica.com, Down Syndrome is defined as a "congenital disorder by an extra chromosome on the chromosome 21 pair." Although there are many theories that have been forwarded for the cause of chromosome abnormalities, there is no known research for the cause of Down Syndrome. There are three main types of chromosome abnormalities in Down Syndrome. They are Trisomy 21, Mosaic Down Syndrome, and Translocation Down Syndrome. All three types have similar characteristics and it is…
