ln definition, Down's syndrome, also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. It is usually associated with developmental delays, mild to moderate intellectual disability, and characteristic physical features. But in reality, they are dreaming and getting closer th thier dreams more than we ever think. In this video the JCI giving a closer look into there dreams and thier efforts to adhesive it.