| isoallotypic determinant | <genetics> Genetic determinant's that are both isotypic and allotypic in that they appear in all members of at least one subclass of immunoglobulin but only in some members of another subclass of the same species. (05 Mar 2000) |
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| allotypic determinants | Antigenic determinant's of allotypes. (05 Mar 2000) |
| disease determinants | Any variables that directly or indirectly influence the frequency of occurrence and/or the distribution of any given disease; they include specific disease agents, host characteristics, and environmental factors. (05 Mar 2000) |