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Fri Sep 5

• All Brains Are the Same Color - New York Times: Evidence heavily favors the view that race differences in I.Q. are environmental in origin, not genetic. The hereditarians begin with the assertion that 60 percent to 80 percent of variation in I.Q. is genetically determined. However, most estimates of heritability have been based almost exclusively on studies of middle-class groups. For the poor, a group that includes a substantial proportion of minorities, heritability of I.Q. is very low, in the range of 10 percent to 20 percent. This means that for the poor, improvements in environment have great potential to bring about increases in I.Q. In any case, the degree of heritability of a characteristic tells us nothing about how much the environment can affect it. Brain size is correlated with intelligence, and that blacks have smaller brains than whites. But the brain size difference between men and women is substantially greater than that between blacks and whites, yet men and women score the same, on average, on I.Q. tests.
• Genetics and infectious disease | Some people are more prone to infection than others. One answer could be to dose them with the molecules that their immune systems cannot make| Economist.com: Different alleles of certain genes cause some people to succumb to infection whereas others are left relatively unscathed. They thus hope to explain not only why some people can be infested with virulent microbes without contracting a disease (whereas others become ill even though they are less infected) but also why such patterns run in families and in ethnic groups. A single gene out of the 25,000 or so in the human genome can make all the difference to whether or not a person suffers from many common diseases. The lack of a molecule called type 1 interferon plays a role in innate immunity: the defence against infection that babies are born with. Adaptive immunity is thought to be a response to specific bacteria, viruses, fungi and parasites (the development of specific antibodies). Innate immunity is the body's general response to all threats of disease; however new research suggests that innate immunity could be specific, too and it is genetic trait.
• RU Newswire: New antibiotic beats superbugs at their own game
• Seth's blog " Blog Archive " The Israeli Paradox
• Access : 'Normal' genes key to cancer growth : Nature News
• Not Exactly Rocket Science : Did a gene enhancer humanise our thumbs?: effect of gene regulation on human evolution

Thu Sep 4

• Gene trawl shows curing cancer harder than thought
• Highly Sensitive
• Max-Bro.net " 33 Disturbing But True Facts About Eugenics
• How genes affect couple bonding. - By Sydney Spiesel - Slate Magazine

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