title: Genes and DNA. "The transforming principle. Discovering that genes are made of DNA." By M. McCarty. Essay review.
mesh_terms: D004247:DNA / Q000032:analysis / Q000266:history; D005796:Genes; D005823:Genetics / Q000266:history; D049673:History, 20th Century; D006801:Humans; D008967:Molecular Biology / Q000266:history
chemical_list: D004247:DNA