試題詳解

51. Why can normal immune responses be described as polyclonal?
(A) Blood contains many different antibodies to many different antigens.
(B) Construction of a hybridoma requires multiple types of cells.
(C) Multiple immunoglobulins are produced from descendants of a single B cell.
(D) Diverse antibodies are produced for different epitopes of a specific antigen.
(E) Macrophages, T cells, and B cells all are involved in normal immune response.