The professor clarifies: “It is simply observed rather than explained.” “There is no scientific answer yet.”
Many famous people with blue eyes have brilliant minds, like Stephen Hawking, Alexander Fleming, and Marie Curie.
Most interestingly, all blue-eyed persons have one trait in common, and the fact has startled many.
Someone writes, “I had no idea! Fascinating…”
Another joke: “Spoiler alert: all of their eyes are blue.”
However, it turns out to be much more intriguing than that (quite obvious) response.
Blue eyes are caused by a gene known as HERC2.
This gene inhibits OCA2, which causes varied hues of brown eyes, and regulates the quantity of brown pigment melanin produced.
Professor Hans Eiberg of the University of Copenhagen’s Department of Cellular and Molecular Medicine explains: “Initially, we all had brown eyes. However, a genetic mutation affecting the OCA2 gene in our chromosomes resulted in the formation of a’switch’ that literally ‘turned off’ the ability to generate brown eyes.”
