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Scientists discover why teeth form in a single row
(PhysOrg.com) -- A system of opposing genetic forces determines why mammals develop a single row of teeth, while sharks sport several, according to a study published today in the journal Science. When comple ...
Feb 26, 2009 |
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Biologists find gene network that gave rise to first tooth
A paper in this week's PLoS Biology reports that a common gene regulatory circuit controls the development of all dentitions, from the first teeth in the throats of jawless fishes that lived half a billion years ago, to the ...
Biology /
Feb 10, 2009 |
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