Master Immunology Concepts for USMLE Step 1
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Questions and Answers

Which cells have MHC I molecules on their surfaces?

  • Only nucleated cells (correct)
  • Only T cells
  • All cells in the body
  • Only red blood cells

    • What is the purpose of MHC I molecules?

  • To load antigens onto MHC molecules
  • To interact with CD4+ T cells
  • To bind to CD8+ T cells
  • To display intracellular pathogens to T cells (correct)

    • How is antigen loaded onto MHC I molecules?

  • Interacts with CD8+ T cell receptor (TCR) + CD8
  • Associated with b2microglobulin and TAP protein (correct)
  • Binds to CD4+ T cells
  • Interacts with CD4+ T cell receptor (TCR) + CD4

    • Which cells interact with MHC I molecules?

    <p>CD8+ T cells</p> Signup and view all the answers

    What is the purpose of this review?

    <p>To save time by focusing on high-yield points</p> Signup and view all the answers

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