title: Evolutionary conservation of H-Y ('male') antigen.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D002645:Chickens; D003429:Cross Reactions; D003601:Cytotoxicity Tests, Immunologic; D000939:Epitopes; D004912:Erythrocytes / Q000276:immunology; D006649:Histocompatibility Antigens; D007104:Immune Adherence Reaction; D007518:Isoantibodies; D008297:Male; D051379:Mice; D011894:Rana pipiens; D012723:Sex; D013045:Species Specificity; D013094:Spermatozoa / Q000276:immunology; D014981:Xenopus
chemical_list: D000939:Epitopes; D006649:Histocompatibility Antigens; D007518:Isoantibodies