Basic Immunology Final; practice questions NAME

Basic Immunology final ; practice questions NAME_____ MCB 4211, Student ID#_____ Page 1 of 8 Circle the BEST answer from the choices available. Be sure to read all of the alternatives. 1. What effect might the injection of soluble CD4 molecule have on the immune system of an AIDS patient? a. It might serve to prevent the attachment of mature HIV-1 viral particles to the helper T cell membrane. b. It might bind to CXCR4 chemokine receptors and initiate chemotaxis. c. It might bind to CD3 molecules and activate T cell function. d. All of the above. e. None of the above. 2. Some forms of autoimmune disease result from autoantibodies that bind to receptors on the cell surface. Antibodies that bind to these receptors can cause disease by a. Activating complement and causing cell lysis b.

d. Nucleoside analogs interfere with GP120 rearrangement required for binding e. CCR5 and CXCR4 mutations can block HIV from entering the cell 21. Hepatitis B vaccines are composed of the hepatitis B virus surface antigen and do not intact virus. This is an example of a(n) _____ vaccine. a. Live virus vaccine b. Attenuated vaccine

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