T and B Lymphocytes

This is a brief quiz on T and B lymphocytes; their production, maturation and function within the body

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  • Created by: gemmmmma
  • Created on: 06-08-20 11:05

1. What occurs during genetic rearrangement of B cells?

  • The rearrangement of all possible combinations of V-J-B and V-J segments of the variable regions
  • The rearrangement of all possible combinations of V-J-B and V-J segments of the constant regions
  • The rearrangement of all possible combinations of V-J-D and V-J segments of the variable regions
  • The rearrangement of all possible combinations of V-J-D and V-J segments of the constant regions
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2. How are CTLs armed directly?

  • Potent signals from Th1 cells
  • Potent signals from dendritic cells
  • By antigen specific Th1 cells
  • By antigen specific dendritic cells

3. What is the role of a Th1 cell?

  • Producing IFN-γ
  • Producing IgE
  • Mediating cellular immunity to viral infections
  • Mediating humoral immunity

4. Which of these is NOT a role of T lymphocytes?

  • Activation of B cells
  • Cell-mediated immunity
  • Propagation of tumour cells
  • Apoptosis of infected/tumour cells

5. How is class switching stimulated?

  • By cytokines from Th1 cells
  • By encountering a new pathogen toxin
  • By cytokines from Th2 cells
  • By encountering a new antigen
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