24.2 Clonal selection amplifies lymphocytes that respond to individual antigens Figure 24.3 The pool of immature ↓ lymphocytes contains B cells and T recophocyte cells making antibodies and receptors with a variety of specificities Clonal Reaction with an antigen leads to expansion ↓ clonal expansion of the lymphocyte with the antibody(B cell) or receptor (T cell) that can recognize the antigen 消当Figure 24.3 The pool of immature lymphocytes contains B cells and T cells making antibodies and receptors with a variety of specificities. Reaction with an antigen leads to clonal expansion of the lymphocyte with the antibody (B cell) or receptor (T cell) that can recognize the antigen. 24.2 Clonal selection amplifies lymphocytes that respond to individual antigens