title: On the origin of t chromosomes.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D002875:Chromosomes / Q000145:classification; D006183:H-2 Antigens / Q000235:genetics / Q000276:immunology; D051379:Mice / Q000235:genetics / Q000276:immunology; D009115:Muridae / Q000235:genetics* / Q000276:immunology; D011110:Polymorphism, Genetic
chemical_list: D006183:H-2 Antigens