- The genetic constitution of an individual with respect to one member of a pair of allelic genes; individuals are of the same haplotype (but of different genotypes) if alike with respect to one allele of a pair but different with respect to the other allele of a pair.
- In immunogenetics, that portion of the phenotype determined by a set of closely linked genes inherited from one parent (genes located on one of the pair of chromosomes).
[haplo- + G. typos, impression, model]
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Examples: glitazone, GI cocktail, etc.