Nerds at Edinburgh University have determined redheads get their spectacular hair due to eight previously unknown genes.
REDHEADS have eight different genes to thank for their flaming locks, scientists have revealed. They solved the mystery of how gingers get their hair colour by studying DNA from a data bank of almost 350,000 people.
It was known the MC1R gene, passed on by parents, influenced hues but researchers suspected variants were at play.
The Edinburgh University team identified eight previously unknown genetic differences that can lead to rusty roots. They also found that some of these work by controlling when MC1R is switched on or off.
My only question is why would anyone want to turn it off?