March 13, 2009

DNA Test Could Help Predict Disease

A big step is complete in predicting the risk for disease based on DNA.

Researchers from the Netherlands have found a way to identify someone's eye color
(complex trait) by examining their DNA.   In the study, the scientists predicted with
an accuracy over 90 percent whether a person has blue or brown eyes.  They did it by analyzing DNA from only six different positions of the genome.
This discovery suggests complex traits can be predicted from the genome sequence alone, provided the genes with strong effects on the trait exist and are known.  Researchers say that could help in predict disease risks based on DNA before the disease breaks out.


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