- A Mass replication
- B Clonal selection
- C IgM
- D IgE
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Answer:
B
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Clonal selection is the process of formation of a large number of effector cells against a particular antigen. It involves the formation of a clone of cells by each activated T-lymphocyte and antibody-producing plasma cells by activated B-lymphocyte, each exhibiting the specificity for the same antigen.
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