title: Sex determination in birds and mammals.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D001717:Birds / Q000502:physiology*; D004247:DNA / Q000096:biosynthesis; D005260:Female; D006066:Gonads / Q000254:growth & development; D008297:Male; D008322:Mammals / Q000502:physiology*; D010053:Ovary / Q000254:growth & development; D010828:Physiology, Comparative; D012730:Sex Chromosomes; D012732:Sex Determination Analysis; D013737:Testis / Q000254:growth & development
chemical_list: D004247:DNA