Some Things You Should Know on World Down Syndrome Day
March 21 (3/21) is World Down Syndrome Day. This date was not chosen at random. Rather, it represents the fact that, while most people have 46 pairs of chromosomes, some people have a third copy on the twenty-first chromosome. This third copy causes Down Syndrome, also known as Trisomy 21. Some other facts: It’s not “Down’s…

