Humans' DNA Not Quite So Similar

Then why do I feel so different???...

NEW YORK - People are less alike than scientists had thought when it comes to the billions of building blocks that make up each individual's DNA, according to a new analysis.

"Instead of 99.9 percent identical, maybe we're only 99 percent (alike)," said J. Craig Venter, an author of the study - and the person whose DNA was analyzed for it.

Several previous studies have argued for lowering the 99.9 percent estimate. Venter says this new analysis "proves the point."

The new work, in the latest issue of PLoS Biology, marks the first time a scientific journal has presented the entire DNA makeup, or human genome, of an individual. However, James D. Watson - co-discoverer of DNA's molecular structure - received his own personal DNA map from scientists a few months ago. And the genomes for both him and Venter are already posted on scientific Web sites.

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