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young golden blonde girl with earrings reveals her high heels and black thongs at the vanity table with lamp and mirror, antique chair and curtains

Young Golden Blonde Girl With Earrings Reveals Her High Heels And Black Thongs At The Vanity Table With Lamp And Mirror, Antique Chair And Curtains

Evolution of blond hair
Natural lighter hair colors occur most often in Europe and less frequently in other areas. In northern European populations, the occurrence of blond hair is very frequent. The hair color gene MC1R has at least seven variants in Europe giving the continent a wide range of hair and eye shades. Based on recent genetic information carried out at three Japanese universities, the date of the genetic mutation that resulted in blond hair in Europe has been isolated to about 11,000 years ago during the last ice age.
A typical explanation found in the scientific literature for the evolution of light hair is related to the requirement for vitamin D synthesis and northern Europe's seasonal deficiency of sunlight. Lighter skin is due to a low concentration in pigmentation, thus allowing more sunlight to trigger the production of vitamin D. In this way, high frequencies of light hair in northern latitudes are a result of the light skin adaptation to lower levels of sunlight, which reduces the prevalence of rickets caused by vitamin D deficiency. The darker pigmentation at higher latitudes in certain ethnic groups such as the Inuit is explained by a greater proportion of seafood in their diet. As seafood is high in vitamin D, vitamin D deficiency would not create a selective pressure for lighter pigmentation in that population.

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Filename:674099.jpg
Album name:Babes
Rating (1 votes):55555
Keywords:#young #golden #blonde #girl #earrings #reveals #her #high #heels #black #thongs #vanity #table #lamp #mirror #antique #chair #curtains
Filesize:88 KiB
Date added:Apr 07, 2015
Dimensions:800 x 539 pixels
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