Question

genetic deficiencies in ______ cells cause abnormal immunoglobulin production.

○ mast
○ nk
○ t
○ dendritic
○ b

Explanation:

Immunoglobulins (antibodies) are produced by B cells. Genetic deficiencies in B cells would disrupt the normal production of immunoglobulins. Mast cells are involved in allergic responses, NK cells in innate immunity (killing infected cells), T cells in cell - mediated immunity, and dendritic cells in antigen presentation. So the cell type related to immunoglobulin production is B cells.

Answer:

E. B