title: The first steps in adaptive evolution.
authors.forename: James J
authors.initials: JJ
authors.lastname: Bull
authors.forename: Sarah P
authors.initials: SP
authors.lastname: Otto
mesh_terms: D000220:Adaptation, Biological; D010584:Bacteriophage phi X 174 / Q000235:genetics*; D004277:DNA, Single-Stranded / Q000235:genetics*; D019143:Evolution, Molecular; D005787:Gene Frequency; D008957:Models, Genetic; D009154:Mutation / Q000235:genetics; D012641:Selection, Genetic
chemical_list: D004277:DNA, Single-Stranded