The __________ theory states that each antigen reactive B cell or T cell has only a single type, or specificity, of antigen binding receptor on its surface.

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     antigen presenting
      macrophage activation
      immune tolerance
      clonal selection
asked May 16, 2012 in Microbiology by anonymous
    

1 Answer

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clonal selection
answered May 17, 2012 by Bioshare ~Top Expert~ (34,070 points)



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