Adaptive Immunity and Antigens
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Questions and Answers

What was announced by the World Health Organization in 1979?

  • The eradication of smallpox (correct)
  • The outbreak of a new disease
  • The development of a new antibiotic
  • The discovery of a new vaccine

    • What is the function of variable antigen-specific receptors in adaptive immunity?

  • Undergoing gene segment rearrangements to produce effector cells (correct)
  • Recognizing pathogens through germline-encoded receptors
  • Differentiating into effector cells to clear infection
  • Producing cytokines to activate immune cells

    • What occurs late in the immune response?

  • Differentiation of effector cells to clear infection
  • Clonal expansion of rare B cells and T cells (correct)
  • Activation of the adaptive immune system
  • Recognition of pathogens by innate immunity

    • What type of receptors are used by the innate immune system?

    <p>Germline-encoded receptors</p> Signup and view all the answers

    What is the result of gene segment rearrangements in adaptive immunity?

    <p>Variable antigen-specific receptors</p> Signup and view all the answers

    What is the purpose of clonal expansion in adaptive immunity?

    <p>To increase the number of specific immune cells to combat infection</p> Signup and view all the answers

    What is the role of B cells and T cells in adaptive immunity?

    <p>To undergo clonal expansion and differentiate into effector cells</p> Signup and view all the answers

    What is the outcome of successful adaptive immunity?

    <p>The clearance of infection by effector cells</p> Signup and view all the answers

    What occurs in the initial phases of the immune response?

    <p>Recognition of pathogens by germline-encoded receptors</p> Signup and view all the answers

    What is the function of effector cells in adaptive immunity?

    <p>To migrate to the site of infection and clear the infection</p> Signup and view all the answers

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