Being a "Native American" is a citizenship in a Native American Nation. It makes no difference if the person is 1/4, 1/2 or full-blood or whatever, If they meet the citizenship requirements of a Native American Nation they are Native American. End of Story.
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@ Turkey Grease "Read Your Link" . . . It clearly says Native Americans are not genetically related to Asians.
And Yes Native Americans are one of the oldest races on the planet. Far older than Caucasoids.
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Native Americans are more closely related to each other than to any existing Asian population
A variant dubbed the “9-repeat allele,” . . .occurred in all of the 41 populations sampled from Alaska to the southern tip of Chile. . . Yet this allele was "absent" in all 54 of the Eurasian, African and Oceanian groups.
2009: Native Americans descended from a single ancestral group
http://www.sciencedaily.com/releases/2009/04/090428223836.htm
9RA - Map
The proportion of people with the 9RA gene marker (indicated in red) "is highest throughout the Americas" (image: Royal Society/Schroeder et al)
http://www.newscientist.com/data/images/ns/cms/dn11178/dn11178-1_783.jpg
This data shows a "World Population Relationship Tree". Native Americans form their own "super race" and are genetically distinct from all other world populations. (Pg. 4)
2010: World Genetic Map of Living Humans - DNA Tribes
http://www.dnatribes.com/sample-results/dnatribes-global-survey-regional-affinities.pdf
In the present HLA gene study we have been able to uncover that Amerindians do not relate with any other worldwide population, according to their HLA genetic profile. The study of chromosome Y haplogroups also supports the uniqueness of Amerindians. An autochthonous origin for the Amerindians would not fit with the current opinion in science.
2006: The uniqueness of amerindians according to HLA genes
http://revista.inmunologia.org/Upload/Articles/6/7/678.pdf
Amerindians are also separated from other world populations on Y chromosome haplogroups bases. This is consistent with our findings and points to either an authoctonous origin for Amerindians or to a very long isolation. This is not concordant with the theory that present day Amerindians came from Siberia through the Bering Strait.
2006: The uniqueness of amerindians Y-chromosome DNA haplogroups
http://www.lignod.com/w-map.jpg
The autochthonous character of American Indian genetic patterns is in keeping with traditional narratives describing emergences or origins in the land itself, which quietly repel scholarly attempts to imagine only migrations from elsewhere for peoples whose roots are in North America.
The primary North American Indian genetic contribution identified for the Arctic region may indicate gene flow from Alaska to Siberia. This would reverse the usual scholarly presumption that North American populations have been only a recipient of Asian immigrants and not a source of American Indian emigrants to Asia.
2008: The Arctic Connection: Alaska to Siberia
http://dnatribes.com/dnatribes-digest-2008-10-25.pdf
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