I have a handful of siblings none of whom resemble each other, not even our parents, almost as if we are all genetic islands. Anyone who sees us together would drop their jaws askance at our physical differences. I feel as if they squint their eyes harder and look for some sort of similarities once the introductions are made and before you ask me, I will confirm that we all share our father’s blood group and no Sirs, no neighbour's evil gaze befell our home.

Keeping the oddity of our family case aside, I am often baffled by siblings who are the exact double of the other. I have had funny incidences with a set of twins that I gave up dealing with them. The miracle of DNA fortunately makes this phenomenon easy to understand.