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The precise genetic origin and spread of blond hair into its present-day distribution is a topic of debate amongst population geneticists.
Blond hair is controlled by an allele that is recessive to most alleles responsible for darker hair, [1] but it is not a disappearing gene.. The "disappearing blonde gene" refers to a hoax that emerged in parts of the Western world in the early 2000s, claiming that a scientific study had estimated that blonds would become extinct within the next two centuries.
Red hair ranges from light strawberry blond shades to titian, copper, and completely red. Red hair has the highest amounts of pheomelanin, around 67%, and usually low levels of eumelanin. At 1–2% of the west Eurasian population, it is the least common hair color in the world. It is most prominently found in the British Isles and in Udmurtia ...
Scroll through the gallery below to learn more about your hair, and its cool history: More from LittleThings: Hide Tiny Candy Bars In Homemade Brownie Mix For An Easy And Decadent Treat
All blond people carry two blond genes. Assume also that 400 million people carry only one blond gene, and therefore are not blonde. With these assumptions the world currently has 150×2 + 400 = 700 million blond genes, out of 14.2 billion hair genes. This means there is one blond gene for every 20.3 hair genes (4.9%).
He defined nordique by a set of physical characteristics: the concurrence of somewhat wavy hair, light eyes, reddish skin, tall stature and a dolichocephalic skull. [14] Of six 'Caucasian' groups Deniker accommodated four into secondary ethnic groups, all of which he considered intermediate to the Nordic: Northwestern , Sub-Nordic , Vistula and ...
Brown hair, also referred to as brunette (when female), is the second-most common human hair color, after black hair. It varies from light brown to dark hair. It is characterized by higher levels of the dark pigment eumelanin and lower levels of the pale pigment pheomelanin .
From her signature red hair circa Mean Girls to her short-lived stint as a platinum blonde, Lindsay Lohan has had quite the hair evolution. A natural born redhead, there’s no question that the ...