March 21st is known around the globe as World Down Syndrome Day. Why? Good question! Trisomy 21, the clinical term for Down syndrome, is a congenital disorder caused by a chromosomal defect. Individuals with Down syndrome have an extra chromosome on their 21st pair, giving them 3. So, get it? Three of the 21st... 3/21.… Continue reading World Down Syndrome Day 2020