since aci ( rt1a ) strain animals did not respond to the antigen , the genetics of the in vivo humoral immune response to repeated immunization were investigated in 43 animals of the second filial generation from the responder maxx and the nonresponder aci strain , as well as in 13 animals produced by backcrossing ( maxx x aci ) f1 and aci .
C0003320
antigen
C0020967
humoral immune response