Which of the following is not true of the antigen-independent period of lymphocyte development?
A. Lymphocytes with specificity for self are destroyed.
B. Mature lymphocytes populate lymphatic organs and encounter antigens.
C. Many lymphocytes with different specificities are formed.
D. Random genetic rearrangements occur to produce different surface protein receptors.
E. Lymphocytes form from stem cells in the bone marrow.
Answer: B
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