Cytotoxic T cells ________.
A) are directly activated by antigens
B) lack specificity for antigen.
C) secrete granzymes and perforins that damage target cells
D) secrete interleukin-2 to stimulate B and T cells
E) All of the choices are correct.
Correct Answer:
Verified
Q43: Acellular vaccines and subunit vaccines
A)contain modified bacterial
Q47: When an antibody is covering a foreign
Q48: Which lymphocytes lack specificity for antigen and
Q50: Edward Jenner's work involved
A)inoculation of dried pus
Q51: All nucleated cells contain _.
A)class I MHC
B)class
Q51: Immunotherapy is the
A)use of antitoxins.
B)use of immune
Q53: An example of artificial active immunity would
Q54: An example of artificial passive immunity would
Q56: Antitoxins
A)contain modified bacterial exotoxin molecules.
B)are always genetically
Q58: Live, attenuated vaccines
A)include the Sabin polio vaccine.
B)include
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