| Front | The diversity among antigen receptors generated by combining separate units of genetic information, comprising two types. First, receptor gene segments are joined in many different combinations to generate diverse receptor chains; second, two different receptor chains heavy and light in immunoglobulins; α and β, or γ and δ, in T-cell receptors are combined to make the antigen-recognition site |
| Back | combinatorial diversity |
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| Front | The process exclusive to developing lymphocytes in vertebrates, that recombines different gene segments into sequences encoding complete protein chains of immunoglobulins and T-cell receptors |
| Back | VDJ recombination |
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| Front | Short-lived alternative pathway C3 convertase, C3H, 2, 0Bb, that is continually produced at a low level in the plasma that can initiate activation of the alternative pathway of complement |
| Back | fluid-phase C3 convertase |
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