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Comment Re:Intercourse. (Score 1) 103

For the moment, I think we need to point to the simplest hypothesis, which is these genes were present in at least of the proto-Indian populations that went over the land bridge. That's not to exclude the possibility of new evidence pointing towards some sort of trans-Pacific input into the Americas, but the evidence, as small a body as it is, simply does not support that conclusion. More studies will be needed to determine if there are other loci for these genes, in the hopes of establishing at least the rudiments of a migration pattern.

Comment Re:Sample is not large enough (Score 2) 103

More samples is good, but I question your statement that the sample size in question isn't large enough. The fact is that the DNA is present, it shows a link to a previously unknown Asian progenitor population, a population that also bequeathed their DNA to some south Asian populations and to indigenous Australians. Better sampling may identify other areas of the Americas where these genes ended up, which would help understand migration patterns not only from Asia to the Americas, but also within the Americas themselves.

Comment Re:Why should this be funded? (Score 4, Insightful) 103

That you're imagination is so limited should not reflect on science's need for basic research. Unless you have a crystal ball that accurately reports what basic research taking place now is going to blossom into value further down the road, all you have is a pretty goddamned mindless anti-intellectual rant.

Comment Re:Intercourse. (Score 4, Insightful) 103

My understanding is not that an Austro-Melanesian population contributed to American Indian DNA, but rather that some progenitor population in Asia bequeathed their DNA to both groups. This puts a somewhat different hide on the cat, underlining that the Paleo-Indians were not a homogeneous Siberian population, but rather themselves were descended from a patchwork of groups in Asia who entered and likely interbred for centuries in Beringia.

Comment Re:Seriously... (Score 2, Insightful) 245

Simplistic solutions are attractive to bean counters, politicians, and even voters. All three groups are frequently unoccupied by unsophisticated people who may have certain degrees of tactical intelligence, but tend not be able to think through a given proposal, but rather look for things that are somehow emotionally or ideologically pleasing.

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