How long after initiation of a primary response do significant amounts of antibody appear in the blood?
A) One day
B) 10-14 days
C) 4 weeks
D) 6 months
Correct Answer:
Verified
Q30: CD4 cells are also known as
A) T
Q33: CD8 cells are
A)T helper cells.
B)natural killer cells.
C)T
Q34: According to the clonal selection theory
A) antibodies
Q35: The Fc region on IgG
A)interacts with complement.
B)attaches
Q36: Antigens interact with antibodies at
A)the outer end
Q37: The variable region of an antibody occurs
A)only
Q39: The cells that actually secrete antibodies are
A)plasma
Q41: Giant cells are
A)a fusion of B cells.
B)a
Q42: The surface receptors on B and T
Q43: Class II MHC molecules are found primarily
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