This causes an extra chromosome to be carried over, causing the person to have 47 chromosomes instead of the normal 46. The second type of Down's Syndrome is called Translocation. Translocation occurs when the 21st chromosome attaches itself onto another chromosome. In some cases this may be the result of an abnormality present in one of the parents, usually the mother. The third type of Down's Syndrome is called Mosaicism.
Mosaicism occurs when some of the cells in the body contain an extra chromosome.
This means that the body will contain some normal cells and some trisomic cells. People with Down's Syndrome have distinct physical characteristics. These physical characteristics grow increasingly more distinct with age. Down's Syndrome and Education Children with Down's Syndrome are currently mainstreamed into regular education classrooms. It is extremely important that all teachers know how to educate children with Down's Syndrome in order to assure that these students are working to their full potential.