Wednesday, December 30, 2009

Were Africans purebreads in terms of genetics due to geographic isolation?

Please I do not mean to make any form of a racist remark but historically were they pure breads without and genetic variety. Today all humans are pretty much the same as we are all a mix of different races and as time goes on this will become even more true. Kinda like a 100% navajo indian you hear many people say they are 30% Cherokee or whatever what about africans? Can anyone say they are 100% african anymore?Were Africans purebreads in terms of genetics due to geographic isolation?
Most definitely possible. There are still very strict marriage patterns within the more tribal regions of Africa that do not allow (or atleast strictly discourage/ban/outlaw) social events to occur such as marriage/sex.





During the beginning of man, surely everyone was ';purebred'; simply because travel between many regions were not possible. Nowadays, traveling is made a lot easier with modern vehiciles.. but I would venture to say that there are still some people in Africa that have ventured outside of their clans/families/groups/etc.





I mean.. it's possible, right?Were Africans purebreads in terms of genetics due to geographic isolation?
Africa has always had a great deal of variation All the people that left Africa are likely descended from a small population of about 200 people. They seem to have left in a single group about 70,000 years ago. All the other races descend from that small population. Africans still have more genetic diversity than the other races. They are also probably the least isolated group.
There are probably a lot of African mixes (Ethiopian Gambian Kenyan for example), I don' know if you'd count that as unmixed because they're still pure African.





But I'm sure that there are some people that aren't mixed with other African countries either; there are so many African people, there have to be at least a couple of ';purebreds';.
Africans actually have a lot of genetic variation. Africans from Ghana look notably distinguishable from Africans from let's say Kenya or Cameroon. There is no such thing as being 100% anything. All races share genetic similarities. Just like Europe has variation between different peoples, so does Asia and Africa.
Good question. I've never really thought of that. Your probably right. I don't think anyone can say they're ';purebred'; anymore...
Generally, yes.





But the only flaw in this reasoning, is that in fact, the African population has the most genetic varieties in the world. In fact, anyone not originally from Africa is more likely to have a very similar genetic make-up, different from all the various African genetic make-ups.





This is because of the isolation of the continent and the fact that only a handful of people could emigrate and survive to go forth an populate the rest of the world.





So even if anyone says they are 100% African, they probably are, but that doesn't mean that they are genetically similar to all the other 100% African people they share their continent with.

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