Lucky Few Shamrock

Yes, I realize this shamrock only has 3 leaves, but I think it represents the extra 3rd chromosome on 21st strand. But this poem speaks to me. Who knows why Down syndrome occurs? Why does the extra 21st chromosome stick to the cell when the fertilized egg begins its first cell division?It can be compared to what happens in nature, to a field of clover. Usually, we see 3 leaves on each clover. Once in a while, however, we find a clover that has an extra leaf making it a four-leaf clover. We don’t know why Mother Nature decided to add that extra leaf; she just did.There is no obvious explanation all…