title: Evolvability.
authors.affiliation: Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6018, USA. paulsnie@sas.upenn.edu
authors.forename: Paul D
authors.initials: PD
authors.lastname: Sniegowski
authors.forename: Helen A
authors.initials: HA
authors.lastname: Murphy
mesh_terms: D000220:Adaptation, Biological; D019143:Evolution, Molecular; D014644:Genetic Variation; D012641:Selection, Genetic