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Which of the following is a special binding substance that enhances immunogenicity and prolongs antigen retention at the injection site?


A) Adjuvant
B) Booster
C) Antibodies to toxin
D) Gamma globulin
E) "Trojan horse" recombinant vaccine

F) B) and C)
G) None of the above

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After his recovery from chickenpox, which lymphocytes will keep this patient from becoming infected again?


A) T helper cells
B) Natural killer cells
C) T memory cells
D) B cells

E) None of the above
F) B) and D)

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The hinge region of an antibody has a hypervariable amino acid region where the antigenic determinant fits.

A) True
B) False

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