T cell receptors in the thymus.
D000818:Animals; D002454:Cell Differentiation; D005333:Fetus / Q000276:immunology; D005802:Genes, MHC Class II; D007143:Immunoglobulin Heavy Chains / Q000235:genetics; D051379:Mice; D008815:Mice, Inbred Strains; D011948:Receptors, Antigen, T-Cell / Q000032:analysis* / Q000235:genetics; D013601:T-Lymphocytes / Q000166:cytology / Q000276:immunology; D013950:Thymus Gland / Q000276:immunology*
D007143:Immunoglobulin Heavy Chains; D011948:Receptors, Antigen, T-Cell