Saturday, May 10, 2014

Is red hair exclusive to the scots/irish?




rott_oktob





Answer
red hair is commonly associated with people of British or Irish descent, although red hair is found in many other parts of the world.

Scotland is the country with the highest content of red haired people which includes approximately 13% of their population.

It is estimated that 2 to 5 percent of the population of the United States has red hair.

It occurs more frequently (between 2% and 6% of the population) in northern and western Europeans and at lower frequencies throughout other parts of Europe, Asia and Africa.

Approximately 1% to 2% of the total human population have red hair.

If i have red hair does that mean i have some Irish or Scottish blood?




Aricela


As far as i know im Mexican, Spanish , and Native American. I have natural red and blondish highlights and my eyes are a lighter brown than the rest of my family, and have a tiny bit of green in them. My skin is a little tan because i live in AZ but light compared to other Hispanics. Do you think i have some Irish or Scottish blood?


Answer
No.
Red hair appears in 1%-2% of the population; 2%-6% in the case of northwest European people, which includes Denmark, Sweden, Norway,...

Red hair is probably a product of genetic drift, so it's mostly a random mutation that does not have any adaptative advantages but causes no special harm to the bearer of the genes, so it survives.
There are cases of red hair in Africa as well, though in this case red hair IS a genetic disadvantage, which explains the much lower incidence of these genes in the black population (that comes from Africa).




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