title: Francis Ryan and the origins of directed mutagenesis.
authors.affiliation: School of Biological Sciences, University of Sussex, Falmer, Brighton, UK.
authors.forename: N D
authors.initials: ND
authors.lastname: Symonds
mesh_terms: D005827:Genetics, Microbial; D049673:History, 20th Century; D016296:Mutagenesis; D014481:United States