Which lymphocytes lack specificity for antigen and attack cancer cells and virus-infected cells?
A) Delayed hypersensitivity T cells
B) Natural killer (NK) cells
C) Suppressor T cells
D) Helper T cells
E) Cytotoxic T cells
Correct Answer:
Verified
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
Q46: Cytotoxic T cells
A)secrete interleukin-2 to stimulate B
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
Q52: Which of the following is not a
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