title: The molecular clock.
authors.forename: Colin
authors.initials: C
authors.lastname: Berry
mesh_terms: D000596:Amino Acids / Q000235:genetics; D000818:Animals; D019143:Evolution, Molecular; D006454:Hemoglobins / Q000235:genetics; D006801:Humans; D013045:Species Specificity; D014157:Transcription Factors / Q000235:genetics; D014714:Vertebrates
chemical_list: D000596:Amino Acids; D006454:Hemoglobins; D014157:Transcription Factors