Re: omosessuali e neri sono razze inferiori? elementare Watson!
Inviato da Paxtibi il 24/12/2007 12:45:28
Ancora:When scientists first decoded the human genome in 2000, they were quick to portray it as proof of humankind's remarkable similarity. The DNA of any two people, they emphasized, is at least 99 percent identical.
But new research is increasingly exploring the remaining fraction to explain differences between people of different continental origins.
Scientists, for instance, have recently identified the small changes in DNA that account for the pale skin of Europeans, the tendency of Asians to sweat less and West Africans' resistance to certain diseases.
At the same time, genetic information is slipping out of the laboratory and into everyday life, carrying with it the inescapable message that people of different races have different DNA. Ancestry tests tell customers what percent of their genes are from Asia, Europe, Africa and the Americas. The heart-disease drug BiDil is marketed exclusively to African Americans, who seem genetically predisposed to respond to it. Jews are offered prenatal tests for genetic disorders rarely found in other ethnic groups.
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