By Cade Ridenour
Down Syndrome is a disease, in which people are born with 47 chromosomes instead of 46. You can usually tell when a person has Down syndrome because of their flat face, small ears and small mouth. They are not able to do normal things like a lot of running or working out because of week joints. 1 in every 691 baby's is born with Down syndrome.
There are many different symptoms of Down syndrome. People with Down syndrome usually have distinct facial features such as small ears or flat face, big eyes and small mouth. They usually have a short neck and short arms. They can't do a lot of normal things because of their week bones and joints. There life expectancy is 55 years. Because of early diagnosis they can usually get them on the right medication and therapy that would help them out later in life.
The type of mutation is and extra chromosome instead if 46 they have 47 chromosomes. Ten name of the chromosome that is messed up is trisomy 21.
For Down syndrome there is no treatment or cure. They cannot remove an extra chromosome.