title: Drosophila embryos as transitional objects: the work of Donald Poulson and Christiane Nüsslein-Volhard.
authors.affiliation: Massachusetts Institute of Technology, Program in Science, Technology, and Society, Cambridge, Mass.
authors.forename: E F
authors.initials: EF
authors.lastname: Keller
mesh_terms: D000818:Animals; D004330:Drosophila; D004331:Drosophila melanogaster; D004626:Embryology / Q000266:history*; D005823:Genetics / Q000266:history*; D005858:Germany; D049673:History, 20th Century; D014481:United States