During a Primary Humoral Response to Antigens All of the Following

Question

During a primary humoral response to antigens all of the following occur except
A) B cells may differentiate into plasma cells immediately.
B) B cells may undergo several rounds of mitosis before producing plasma cells and memory cells.
C) antibody levels do not peak until 1 to 2 weeks after the initial exposure.
D) neutrophils invade the surrounding areas, releasing chemotactic substances.
E) the first immunoglobulins to appear in circulation are of the IgM type.

Accepted Answer

Neutrophils do play a role in the innate immune response (specifically, in phagocytosis and destruction of pathogens) but they are not typically involved in the primary humoral response. The primary humoral response involves activation, differentiation, and proliferation of B cells and subsequent production and secretion of antibodies by plasma cells.