Cytotoxic T cells
A) secrete interleukin-2 to stimulate B and T cells.
B) lack specificity for antigen.
C) secrete granzymes and perforins that damage target cells.
D) are activated by free, soluble antigens.
Correct Answer:
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Q41: An example of artificial active immunity would
Q42: Killed or inactivated vaccines are prepared by
A)treatment
Q43: Each _ fragment of an antibody molecule
Q44: An activated TH cell produces _, which
Q45: High titers of specific antibodies are characteristic
Q47: Which lymphocytes lack specificity for antigen and
Q49: Acellular vaccines and subunit vaccines
A)contain modified bacterial
Q50: Edward Jenner's work involved
A)development of passive immunotherapy.
B)immunization
Q51: Immunotherapy is the
A)use of antitoxins.
B)use of immune
Q51: Antitoxins
A)are always genetically engineered.
B)confer passive immunity.
C)contain select
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