title: If birds can fly, why can't we? Homeotic genes and evolution.
authors.affiliation: Department of Biochemistry and Biophysics, University of California, San Francisco 94143-0554.
authors.forename: C
authors.initials: C
authors.lastname: Kenyon
mesh_terms: D000818:Animals; D005075:Biological Evolution; D004330:Drosophila / Q000196:embryology / Q000235:genetics; D005786:Gene Expression Regulation / Q000502:physiology; D005801:Genes, Homeobox / Q000502:physiology*; D008954:Models, Biological; D005810:Multigene Family