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kia_williams
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09 Jun 2010, 3:52 pm

I sent an email to AskTheGenetist after reading something..

Quote:
This might shock so be warned, it is not intended offensively.

Origin of homo sapiens sapiens, is determined to be what is now known as africa, according to Norton, HL of oxford, the light skin observed in Europeans (with deep red and/or yellowish skin tones), non-Indian Southeast Asians, East Asians, and North Africans (Maghreb) is due to independent genetic mutations in at least three loci.

Why is autism, that has -so recent research suggests- also been present in the genome since man left africa, considered a disease with genetic basis when being light skin tone with its far more devastating associated vulnerability to cancer, etc. is not considered a disease?
(And, I am Caucasian of Celtic descent)


Personally im extremely curious as to the answers professionals have about this.
Risk of low to medium social functioning and various learning disabilities vs Tenfold risk of dying of cancer...

whats more damaging or dangerous?



cyberscan
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09 Jun 2010, 4:32 pm

Many scientists are npw questioning the African origins of mankind.


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redwulf25_ci
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09 Jun 2010, 5:12 pm

cyberscan wrote:
Many scientists are now questioning the African origins of mankind.


Reputable ones?



DandelionFireworks
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12 Jun 2010, 3:20 am

In less sunny locales, light skin allows for greater production of vitamin D, which is vital.

Light skin works just fine in the areas where light-skinned people are found naturally. Same with dark skin. Both have disadvantages in other areas.

Why are you so sure that autism is that old?


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kia_williams
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12 Jun 2010, 10:11 pm

Quote:
Question: Do we know whether the genetic differences discovered in this study are new, or have always been present in some percentage of the population?

Response: Most of the copy number variants we have identified that predispose to autism are inherited and it's therefore likely they have been present for some time. [It's] difficult to say how long, but they were transmitted through the parents. The variant we detected at the 5p14 locus (common variant) has been present for a long time in the genome (most likely since man moved out of Africa)...[and that means]it is regulating gene expression and gene function.

http://autism.about.com/od/geneticsandautism/a/chopautism.htm

research essentially :)

Quote:
Both have disadvantages in other areas.

quite true :)


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