Comments by "Matt Matt" (@CENTRIX4) on "Britain’s DNA: The Culture that Changed Britain Forever… Meet the Bell Beakers" video.

  1. R1b P312 Y Haplotype Mutation originates i the Black Forest of the German Alps in Southern Bavaria. From the P312 mutation the different sub-clades of the R1b Y Haplotype of Western Europe are descended. R1b L21 incudes the Ginger Gene MC1R and this creates significant depigmentation of the skin thus paler skin is able to produce Vitamin D3 more efficiently with the dense cloud cover in the Atlantic Climate Zone of the Western European geographic fringe of Ireland Britain and the Western fringe of the mainland continent of Europe. Ginger hair enables the Ultra Violet (UVB that penetrates a very very dense low cloud cover to reach ground level can also penetrate ginger hair to reach the skin on the skull to increase Vitamin D3 levels thus within the Atlantic Climate Zone Ginger Hair is a biological adaption to increase Vitamin D3 levels. Ginger MC1R gene also results in significant depigmentation of the skin thus with paler skin the body is able to produce Vitamin D3 more efficiently with the low ambient Ultra Violet levels within the Atlantic Climate Zone. Skin tone correlates with the amount of melanin in the skin. Paler skin less melanin. Darker skin more melanin. Melanin protects the skin from skin cancer caused by UVB in sunlight however melanin also blocks production of Vitamin D3 from sun on the skin. Thus skin tone varies with latitude as latitude varies the intensity of ambient Ultra Violet in sunlight on the earths surface. This dies not include within the Arctic Circle as within the Arctic Circle as the atmosphere is so thin that significantly more Ultra Violet in sunlight reaches the earths surface than would be predicted by the latitude within the Artic Circle thus Eskimos have darker skin than you would predict by latitude alone. Blonde hair is the Ultra Violet reflected from snow can penetrate the blonde hair to reach the sin on the skull to increase Vitamin D3 production in the body thus blonde hair is a biological adaption within the Snow Zone of Northern Europe. ===== Nilotes of South Sudan have the darkest skin in the world thus the highest melanin levels in their skin in the world. Ultra Violet in sunlight add to this the Ultra Violet light reflected from dry sand thus the Nilotes of South Sudan have the darkest skin in the world. =====
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