Down Syndrome

A genetic disorder in which a baby is born with either a full or partial extra copy of the chromosome 21 gene. There are 3 types- Trisomy 21, Mosaicism, and Translocation, each of which are used to categorize the way chromosome 21 has been affected. The addition of genetic material to chromosome 21 causes developmental delays as well as abnormal physical characteristics such as eyes with an upward slant, low muscle tone, and a small physique.