title: Polymorphism and MHC gene function.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D005075:Biological Evolution; D006224:Cricetinae; D004463:Ecology; D005787:Gene Frequency; D005788:Gene Pool; D006183:H-2 Antigens / Q000235:genetics; D006680:HLA Antigens / Q000235:genetics; D006801:Humans; D008285:Major Histocompatibility Complex; D008647:Mesocricetus / Q000502:physiology; D051379:Mice / Q000502:physiology; D011110:Polymorphism, Genetic; D012098:Reproduction; D013045:Species Specificity
chemical_list: D006183:H-2 Antigens; D006680:HLA Antigens