Down Syndrome is a well known genetic disorder and it is caused by a chromosome abnormality that occurs before birth. Typically babies have 46 chromosomes, but those with Down’s Syndrome are born with 47 chromosomes, which causes abnormal changes in the development of the child’s body and brain. Children with Down’s Syndrome have very distinct characteristics. They are generally small, with a flat face and a tongue that sticks out. They do suffer from learning problems and most are classified as mildly or moderately disabled.