title: Genetic control of immunoglobulin isotype restriction.
mesh_terms: D000818:Animals; D005802:Genes, MHC Class II; D006462:Hemolytic Plaque Technique; D007143:Immunoglobulin Heavy Chains / Q000235:genetics*; D008285:Major Histocompatibility Complex; D051379:Mice; D008815:Mice, Inbred Strains / Q000235:genetics / Q000276:immunology*
chemical_list: D007143:Immunoglobulin Heavy Chains