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Probability of having black, brown, red, blonde, auburn, hair color?

What is the probability of having:
• Black Hair
• Brown Hair
• Red Hair
• Blonde Hair
• Auburn Hair
• Brunette Hair

So far this is what I have:
P(red hair) = 1 – 2% of human population
2-6% of Europeans
10% of Irelander’s
Down less than 1% in Asia and Africa
(Human population = 6.8 billion)

◙ If you can give me links, that would be helpful.

Thank you 🙂

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2 comments

  1. 100% with hair dyes purchased at your local pharmacy, supermarket, online, or beauty supply store.

  2. here are some links that can be helpful
    http://74.125.155.132/search?q=cache:l6GXDeU1GeQJ:www.purgatory.net/kornelia/1603/red_hair_facts.htm+hair+color+in+population&cd=11&hl=en&ct=clnk&gl=ca

    Genetically, Africans have more variety than other races. Every time a group advanced out of Africa, or from one isolated area to another even more isolated, another batch of genetic variations was left behind. But on the surface, it’s caucasians that have the most variety, for the simple reason that they have a lot less melanin, which takes the darkness out of their skin, hair, and eyes to reveal other possibilities.

    Hair color is determined by 4 to 6 genes, each with several alleles, some with incomplete dominance (i.e. not a matter of one thing or the other, but perhaps a mix of both – like pink carnations). The basic genes involved are for black hair (with a recessive allele for not-black), one for brown hair (with a recessive for blond), and one for red hair (with a dominant allele for not-red). Some of these genes are close to eye color genes on chromosomes 15 and 19, and tend to go along with those genes, which is why we tend to see certain combinations of hair and eye color more frequently than others.

    Black is the most common hair color in the world, and is due to a large amount of eumelanin. Brown is also common, and is due to eumelanin mixed with a bit of pheomelanin. Blond is only found in about 2% of the world’s population. It is due to very small amounts of melanin. Slight amounts of black, brown, and red make for all the variations we see in blonds – such as ash, flaxen, and strawberry blond. And red hair is the rarest of all, about 1% of the world. It is due to high levels of pheomelanin plus low levels of eumelanin.

    If you are curious, gray hair is due to nothing but a little black melanin, and white hair is a matter of no melanin at all.

    light colored hair is found primarily in scandinavia and the baltic sea area. Blond and red hair was probably more common in Europe centuries ago (as witnessed by Greek and Roman accounts), but being recessive, it has slowly receded northward. But you can still find blonds and redheads in places like Afghanistan and northern Pakistan, where the descendents of Indo-European invaders live.

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