試題詳解

5. If a newborn were accidentally given a drug that destroyed the thymus, what would most likely happen?
(A) His cells would lack class I MHC molecules on their surface.
(B) His humoral immunity would be missing.
(C) Genetic rearrangement of antigen receptors would not occur.
(D) His T cells would not mature and differentiate appropriately.
(E) His B cells would be reduced in number and antibodies would not form.