Which of the following is not true of the antigen-independent period of lymphocyte development?
A) Many lymphocytes with different specificities are formed.
B) Random genetic rearrangements occur to produce different surface protein receptors.
C) Lymphocytes with specificity for self are destroyed.
D) Lymphocytes form from stem cells in the bone marrow.
E) Mature lymphocytes populate lymphatic organs and encounter antigens.
Correct Answer:
Verified
Q1: What type of cells secrete antibodies?
A)Antigen-presenting cells
B)Cytotoxic
Q2: The embryonic yolk sac, the liver, and
Q3: Cell surface markers involved in immune reactions
A)are
Q4: A foreign molecule that causes a specific
Q6: Destruction of lymphocytes with self-specificity is called
Q7: The antibody-secreting progeny cells of a B-cell
Q8: Plasma cells
A)function in allergic reactions.
B)secrete antibodies.
C)directly destroy
Q9: MHC molecules are found on all of
Q10: Class II MHC genes code for
A)certain secreted
Q11: The histocompatibility complex proteins function in
A)antibody proliferation.
B)T
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