title: Some genes were isolated and their structure studied before the recombinant DNA era.
authors.affiliation: Department of Embryology, Carnegie Institution of Washington, Baltimore, MD 21210.
authors.forename: D D
authors.initials: DD
authors.lastname: Brown
mesh_terms: D000818:Animals; D004247:DNA / Q000235:genetics / Q000648:ultrastructure; D004274:DNA, Recombinant; D005784:Gene Amplification; D005796:Genes; D005821:Genetic Techniques / Q000639:trends*
chemical_list: D004274:DNA, Recombinant; D004247:DNA