When Individuals Have a Congenital Defect in Which They Lack

question 8

Multiple Choice

When individuals have a congenital defect in which they lack the CD40 ligand (CD40L) on activated T cells, the outcome of that defect is:

• A) They are not able to make mature T or B cells
• B) They are only able to make CD8 cells and no other types of T cells
• C) They are only able to make IgM antibody and no other type of antibody
• D) They are not able to any antibodies at all even though B and T cells are present

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