article by NICHOLAS WADE here.
In a follow-up to the Human Genome Project, a consortium of scientists has compiled a partial catalog of human genetic variation that it hopes will speed the search for the genetic roots of many common diseases.
The catalog is based on analyzing the genomes of people from four ethnic groups - Europeans, Japanese, Chinese and the Yoruba of Nigeria - and it has so far identified about three million sites on the three-billion-unit human genome where some people have different DNA units. These variations help make everyone unique, but they may also be the reason why people have propensities toward certain diseases.
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