Answer the following questions true (T) or false (F)
1. B cell proliferation occurs when an antigen binds to a B-cell receptor on the surface of a specific B-cell clone.
2. IgM is the first antibody secreted by plasma cells when the body is invaded by a pathogen.
3. A lack of memory cells mainly affects the primary immune response.
1. FALSE
2. TRUE
3. FALSE
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