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29 Oct 09

Culture (Not Just Genes) Drives Evolution : Discovery News

dsc.discovery.com/...culture-genes-evolution.html - Preview

genetics genes culture science statistics reference china asia europe collectivism individualism

Culture, not just genes, can drive evolutionary outcomes, according to a study released Wednesday that compares individualist and group-oriented societies across the globe.
most people in countries widely described as collectivist have a specific mutation within a gene regulating the transport of serotonin, a neurochemical known to profoundly affect mood.
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- In China and other east Asian nations, for example, up to 80 percent of the population carry this so-called "short" allele, or variant, of a stretch of DNA known as 5-HTTLPR.
- Earlier research has shown the S allele to be strongly linked with a range of negative emotions, including anxiety and depression.
  
  Critically, it is also associated with the impulse to stay out of harm's way.
- By contrast, in countries of European origin that prize self-expression and the pursuit of individual over group goals, the long or "L" allele dominates, with only 40 percent of people carrying the "S" variant.
- Ancient cultures in Asia, Africa and Latin America highly exposed to deadly pathogens, they conjecture, may have tended toward collectivist norms in order to better combat disease.

19 Aug 09

Schneier on Security: Fabricating DNA Evidence

www.schneier.com/...fabricating_dna.html - Preview

DNA science security identity identitytheft biology genes technology

14 Aug 09

Gene May Determine How Much Sleep You Need : NPR

www.npr.org/...story.php - Preview

sleep health science genetics genes

13 Jul 09

FOX News: Preserve your Aryan Genes! • VideoSift: Online Video *Quality Control

www.videosift.com/...News-Preserve-your-Aryan-Genes - Preview

race aryan racism swedish intermarriage genes science foxnews media press

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