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Pronunciation: het'er-o-zi'gus

Definition: Having different alleles at a given locus on the pair of chromosomes present in the diploid state; for example, having a normal beta globin gene (coding for normal hemoglobin, Hb A) at locus p15.5 on one chromosome 11 and an abnormal gene (coding for sickle-cell hemoglobin, Hb S) at the same locus on the other chromosome 11.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.