World Down Syndrome Day (WDSD), March 21, is a global awareness day which has been officially observed by the United Nations since 2012. Down Syndrome is  defined as “the nucleus of each cell contains 23 pairs of chromosomes, half of which are inherited from each parent. Down syndrome occurs when an individual has a full or partial extra copy of chromosome 21.”

Check out this YouTube video of  “50 Mums/50 Kids/1 Extra Chromosome”.