Scientists Discover Why Teeth Form In A Single Row
Friday, February 27, 2009 - 11:23
in Paleontology & Archaeology
A system of opposing genetic forces determines why mammals develop a single row of teeth, while sharks sport several, according to a study in the journal Science. When completely understood, the genetic program described in the study may help guide efforts to re-grow missing teeth and prevent cleft palate, one of the most common birth defects.