Gary Struhl

Struhl, an American developmental biologist at Columbia University who trained at MIT and Cambridge, dissected how cells read chemical gradients during embryonic development. Using the fruit fly, he showed how morphogens such as those of the Notch and Hedgehog pathways carry positional information that tells cells what to become. He is listed among Jewish scientists, though his biographies do not detail his ancestry. He shared a Gairdner International Award.