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Lesson 5.3 – Evolving pathogens – our body’s responses – B and T cells

This lesson transitions from innate immune responses to adaptive responses.
It deals with the three complex principles of adaptive immunity:

  • Each B and T cell can recognize only one ligand.
  • Each B and T cell recognizes this ligand with a unique receptor that is produced randomly.
  • These receptors are on single B and T cells, so they need to clonally expand before responding to a threat.

Teacher Prep

5.3 Classroom Materials

5.3 Alternative Approaches

 
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