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Published online 20 December 2001 | Nature | doi:10.1038/news011220-12
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Molecules bring about face
A small chemical change has a big effect on a developing face.
Twomolecules can rearrange a face, report researchers who have caused chicken embryos to develop a second beak. "We transformed one part of the face into another," says Joy Richman of the University of British Columbia in Vancouver, Canada.
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