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Distinctive features of innate versus adaptive immunity
| Innate immunity | Adaptive immunity | |
|---|---|---|
| Receptors | Germline-encoded | Antigen receptors are products of site-specific somatic recombination |
| Distribution | Subset-specific but nonclonal | Antigen receptors are clonally-distributed |
| Repertoire | Limited | Immense |
| Selected in groups of individuals within a given species | Selected in each individual within a given species | |
| Memory | No | Yes |
