Activation of T and B thymus cells to recognize histocompatibility antigens.
D000818:Animals; D001402:B-Lymphocytes / Q000276:immunology*; D006649:Histocompatibility Antigens / Q000528:radiation effects*; D006650:Histocompatibility Testing; D051379:Mice; D008815:Mice, Inbred Strains; D011830:Radiation Effects; D013154:Spleen / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology*; D013950:Thymus Gland / Q000276:immunology*; D013997:Time Factors
D006649:Histocompatibility Antigens