Understanding how the gene interacts with other genes controling hair colour, for example, might yield cosmetic applications that block the fade to grey as hair grows in the follicle.
New research suggests individuals can alter their hair colour and use a flatiron to press a new hair pattern.
A single-letter change in the genetic code is enough to generate blonde hair in humans.
DNA taken from blood or skin cells can tell whether someone has red or black hair.
Getting hair colour changed is easy these days - go to any salon or just lift a product off a supermarket shelf.
StarGaze: Katrina- Sidharth Visit Jhalak Sets, Tiger Shroff Promotes A Flying Jatt
LFW 2016: Jacqueline Fernandez, Swara Bhaskar, Saiyami Kher Add Glamour On Day 3
Bollywood's Most Popular 'Dahi Handi' Scenes
In Photos: The Asus Zenfone 3 With Glass-and-Metal Design
Enduring Images of Rio Olympics 2016