French Fabien Danjan of CNRS (French Res [Getty Images]

French Fabien Danjan of CNRS (French Reseach Institut Center) introduces embryonic stem cells in a mouse embryo to set a genetically modified line, on February 9, 2012, at the Centre d'Immunologie de Marseille-Luminy (CIML), in the transgenesis laboratory which in charge to create animals in order to understand how genes work, in Marseille, southern France.
AFP PHOTO / ANNE-CHRISTINE POUJOULAT (Photo credit should read ANNE-CHRISTINE POUJOULAT/AFP/Getty Images)

AFP ANNE-CHRISTINE POUJOULAT