title: New evidence for validity of Haeckel's law on molecular level.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D005075:Biological Evolution; D005314:Embryonic and Fetal Development; D005319:Fetal Hemoglobin / Q000235:genetics*; D005914:Globins / Q000235:genetics*; D006441:Hemoglobin A / Q000235:genetics*; D006801:Humans; D046911:Macromolecular Substances; D008957:Models, Genetic; D009211:Myoglobin / Q000235:genetics*; D013045:Species Specificity
chemical_list: D046911:Macromolecular Substances; D009211:Myoglobin; D005914:Globins; D006441:Hemoglobin A; D005319:Fetal Hemoglobin