EMPLOYMENT GUIDE FOR PERSONS WITH SPECIAL NEEDS
EMPLOYMENT GUIDE FOR PERSONS WITH SPECIAL NEEDS
What causes Down Syndrome?
We still don’t know what causes the extra chromosome 21 to be present. It can come from either the mother or the father. There is no way to prove whether a person is more likely to produce an egg or a sperm with 24 chromosomes. Also, there is a link between older mothers and the […]
What is Down Syndrome?
Down syndrome is a genetic condition caused by the presence of some extra chromosomes in the cells of the body. Down syndrome is not a disease and is not inherited. It happens randomly at conception. Everyone with Down syndrome has some degree of learning disability. Some special physical characteristics are the same in individuals with […]
What does Down syndrome refer to as a genetic condition?
The human body is made up of cells. Each cell is a small factory that produces the material the body needs to develop. All cells contain a nucleolus, in which genes are stored. Genes are grouped into twisted structures of DNA called chromosomes. Usually the nucleus of each cell contains 23 pairs of chromosomes, 23 […]
How often can Down syndrome occur?
It is believed that individuals with Down syndrome have always existed. It wasn’t until 1866, however, when English doctor John Langdon Down published the description of the condition, which later took his name. In 1959 Professor Jerome Lejeune proved that Down syndrome is a chromosomal disorder. Instead of the 46 chromosomes that should normally be […]
How many types of Down syndrome are there?
There are three types of Down syndrome: Trisomy 21 – in which all cells have an extra chromosome 21. About 94% of individuals with Down Syndrome have this type. Translocation – in which the extra chromosome 21 is attached to another chromosome. About 2% of individuals with Down Syndrome have this type. Mosaic – in […]