The Study of Racialism

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PostPosted: Thu 03 May 2012 21:56 
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Solomon Islander Blondism is Independent Mutation

For a few decades now, physical anthropologists have known that the childhood blondism of Austraian Aborigines and Solomon Islanders is a native trait, and not due to gene flow from Europe. But no one knew whether the genetic adaptation was the same one that produces European blondism but evolved independently, or whether it was an entirely different mutation that yields the same result (blonde hair).

The puzzle has been solved for Solomon Islander kids. It turns out to be the second possibility above. Their blondism results from a genetic mutation on a completely different gene from European blondism.

Story here.

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PostPosted: Fri 04 May 2012 21:35 
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This is very interesting, indeed. Gene TYRP1 on Chromosome 9 is responsible. The Solomon Islands variant is absent in Europeans. There is so much to be learned from studying all the world's populations.

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PostPosted: Fri 04 May 2012 21:38 
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William wrote:
There is so much to be learned from studying all the world's populations.

You can say that again!

The other thing that jumps out at you is that, when it comes to adaptation, there is always more than one way to skin a cat. It is amazing how malleable we are.

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PostPosted: Sat 05 May 2012 21:47 
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Some time ago there was a study showing that all blue eyed people inherited the trait from a common ancestor. The problem with the study is that the researchers only looked at Europeans and West Asians (Turks, Levantines etc.). I wonder if the occasional blue eyes found in Northern and Eastern Asians is actually an independant mutation.


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PostPosted: Sat 05 May 2012 22:36 
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NOMAD wrote:
Some time ago there was a study showing that all blue eyed people inherited the trait from a common ancestor. The problem with the study is that the researchers only looked at Europeans and West Asians (Turks, Levantines etc.). I wonder if the occasional blue eyes found in Northern and Eastern Asians is actually an independant mutation.



I live in the Bay Area which has the highest percentage of East Asians in the U.S outside of Hawaii, and I can't say I have ever seen an East Asian with natural blue eyes that are obviously not contacts.


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PostPosted: Sun 06 May 2012 08:34 
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Jerry Lawler wrote:
NOMAD wrote:
Some time ago there was a study showing that all blue eyed people inherited the trait from a common ancestor. The problem with the study is that the researchers only looked at Europeans and West Asians (Turks, Levantines etc.). I wonder if the occasional blue eyes found in Northern and Eastern Asians is actually an independant mutation.



I live in the Bay Area which has the highest percentage of East Asians in the U.S outside of Hawaii, and I can't say I have ever seen an East Asian with natural blue eyes that are obviously not contacts.


Blue eyes are very rare to non-existent in Pacific Rim Asians, however, many Northern Asians and Mongolians have them.


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PostPosted: Sun 06 May 2012 19:11 
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NOMAD wrote:
Jerry Lawler wrote:
NOMAD wrote:
Some time ago there was a study showing that all blue eyed people inherited the trait from a common ancestor. The problem with the study is that the researchers only looked at Europeans and West Asians (Turks, Levantines etc.). I wonder if the occasional blue eyes found in Northern and Eastern Asians is actually an independant mutation.



I live in the Bay Area which has the highest percentage of East Asians in the U.S outside of Hawaii, and I can't say I have ever seen an East Asian with natural blue eyes that are obviously not contacts.


Blue eyes are very rare to non-existent in Pacific Rim Asians, however, many Northern Asians and Mongolians have them.


Mongolians have some Caucasoid admixture due to mixing with the Russians, so of course blue eyes are not as rare in Mongolia as they are in say The Philippines and Cambodia for example.


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PostPosted: Sun 06 May 2012 20:33 
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Jerry Lawler wrote:
Mongolians have some European admixture....

Fixed it for you. Unless you want to be asked to define "Caucasoid" or "Caucasian", you are better off using "European".

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PostPosted: Mon 07 May 2012 07:00 
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fwsweet wrote:
Jerry Lawler wrote:
Mongolians have some European admixture....

Fixed it for you. Unless you want to be asked to define "Caucasoid" or "Caucasian", you are better off using "European".


As a geopolitical or cultural term, "European" is fine but as a racial or genetic term it's just as worthless as "Caucasoid" or "Caucasian". Is there any evidence that blue eyes in Mongolians came from mixing with actual "European" people as opposed to Tocharians, Scythians, Indo-Iranians and other Central Asian peoples?


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PostPosted: Tue 08 May 2012 20:43 
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NOMAD wrote:
As a geopolitical or cultural term, "European" is fine but as a racial or genetic term it's just as worthless as "Caucasoid" or "Caucasian".

I thought that he was talking about gene flow from Europe (the geographical region).

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PostPosted: Wed 09 May 2012 18:31 
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fwsweet wrote:
NOMAD wrote:
As a geopolitical or cultural term, "European" is fine but as a racial or genetic term it's just as worthless as "Caucasoid" or "Caucasian".

I thought that he was talking about gene flow from Europe (the geographical region).


If that's what he was talking about then I think he's incorrect. Light eyes in Mongolians and Siberians may have come from mixing with Scythians and other Central Asians but not Russians or Europeans.


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PostPosted: Thu 10 May 2012 17:12 
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NOMAD wrote:
fwsweet wrote:
NOMAD wrote:
As a geopolitical or cultural term, "European" is fine but as a racial or genetic term it's just as worthless as "Caucasoid" or "Caucasian".

I thought that he was talking about gene flow from Europe (the geographical region).


If that's what he was talking about then I think he's incorrect. Light eyes in Mongolians and Siberians may have come from mixing with Scythians and other Central Asians but not Russians or Europeans.


Considering both the Russian Empire and the Former Soviet Union either encompassed or bordered parts of Mongolia and Siberia, I wouldn't completely rule out Russian, or other European, admixture.

But otherwise, I agree with your statement. :toast

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