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Some fascinating new data particularly for those that are of Amerindian ancestry but also for those that carry small segment of Amerindian DNA. Two important studies both concluded that a rapid expansion occurred 13,000 years ago and then split into two groups one populated North America and the other populated South America.
Quoted"Native Americans truly did originate in the Americas, as a genetically and culturally distinctive group. They are absolutely indigenous to this continent," Raff says." End Quote
They coalesced into distinct genetic populations in the Americas.
So they are different from how their ancestral populations developed genetically in Asia. The rise of two (at least) different genetic groups in the Americas is an interesting mystery. I won't be surprised if other groups are identified when more samples can be examined.
So they are different from how their ancestral populations developed genetically in Asia. The rise of two (at least) different genetic groups in the Americas is an interesting mystery. I won't be surprised if other groups are identified when more samples can be examined.
Yes possibly some evolutionary adaptations to latitude, terrain and weather through natural selection.
Some fascinating new data particularly for those that are of Amerindian ancestry but also for those that carry small segment of Amerindian DNA. Two important studies both concluded that a rapid expansion occurred 13,000 years ago and then split into two groups one populated North America and the other populated South America.
Quoted"Native Americans truly did originate in the Americas, as a genetically and culturally distinctive group. They are absolutely indigenous to this continent," Raff says." End Quote
Some fascinating new data particularly for those that are of Amerindian ancestry but also for those that carry small segment of Amerindian DNA. Two important studies both concluded that a rapid expansion occurred 13,000 years ago and then split into two groups one populated North America and the other populated South America.
Their conclusions are all wrong.
Quote:
Originally Posted by AFP
They coalesced into distinct genetic populations in the Americas.
No, they didn't.
There are 12 different Y-Haplogroups identified with so-called "Native Americans" and 8 different mt-DNA Haplogroups.
That there is a difference between the number of Y and mt-DNA Haplogroups is irrelevant, since the mutation rate is different and fits perfectly.
It is simply not possible for one Y-Haplogroup to mutate into 11 other Y-Haplogroups in the time allotted. At most, the rate of mutation would produce only one additional Y-Haplogroup.
Worse than that, Y-Haplogroup X has no affinity with Asia, so they are not Asian.
At least two Y-Haplogroups are related to Australasians. Those are the people that crossed from Southeast Asia into the Island groups and onto into Australia, before expanding east into other Island groups. Specifically that includes the Karitiana, Surui and Xavante in Brasil.
On top of that, we know that people were hunting giant sloths in Brasil about 25,000 years ago, which is far earlier than the claims that people crossed a non-existent land-bridge at the Bering Strait.
There are 12 different Y-Haplogroups identified with so-called "Native Americans" and 8 different mt-DNA Haplogroups.
That there is a difference between the number of Y and mt-DNA Haplogroups is irrelevant, since the mutation rate is different and fits perfectly.
It is simply not possible for one Y-Haplogroup to mutate into 11 other Y-Haplogroups in the time allotted. At most, the rate of mutation would produce only one additional Y-Haplogroup.
Worse than that, Y-Haplogroup X has no affinity with Asia, so they are not Asian.
At least two Y-Haplogroups are related to Australasians. Those are the people that crossed from Southeast Asia into the Island groups and onto into Australia, before expanding east into other Island groups. Specifically that includes the Karitiana, Surui and Xavante in Brasil.
On top of that, we know that people were hunting giant sloths in Brasil about 25,000 years ago, which is far earlier than the claims that people crossed a non-existent land-bridge at the Bering Strait.
Coalescing into two distinct genetic populations has nothing to do with Y-Haplogroups. It's most likely due to small founding populations and lots of endogamy.
What are the 12 Y-DNA Haplogroups and 8 mtDNA Haplogroups? Do you have a list handy?
They mentioned a small Australasian component in some samples.
We know? Do you have a link to support this or should we take your word that you understand the data better than Reich etc without any substantiation?
There are 12 different Y-Haplogroups identified with so-called "Native Americans" and 8 different mt-DNA Haplogroups.
That there is a difference between the number of Y and mt-DNA Haplogroups is irrelevant, since the mutation rate is different and fits perfectly.
It is simply not possible for one Y-Haplogroup to mutate into 11 other Y-Haplogroups in the time allotted. At most, the rate of mutation would produce only one additional Y-Haplogroup.
Worse than that, Y-Haplogroup X has no affinity with Asia, so they are not Asian.
At least two Y-Haplogroups are related to Australasians. Those are the people that crossed from Southeast Asia into the Island groups and onto into Australia, before expanding east into other Island groups. Specifically that includes the Karitiana, Surui and Xavante in Brasil.
On top of that, we know that people were hunting giant sloths in Brasil about 25,000 years ago, which is far earlier than the claims that people crossed a non-existent land-bridge at the Bering Strait.
I think you are wrong.
The haplogroup C1 is found only in Native Americans, this same haplogroup is found in people of Iceland.
There is one theory about this, the same people who crossed from Asia to the Americas also crossed Greenland into Iceland. Or the Vikings kidnapped Native American women and brought them to Iceland.
There have been human remains which have been dated, by geologists, archeologists and paleontologists, in places both in North American and South America, which indicate humans were here many tens of thousands of years earlier than main stream scientists would have you believe.
Forbidden Archeology is an excellent source for reading up on this matter.
Rich
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