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Medical Term:

manifesting heterozygote


an organism heterozygous for what is ordinarily a recessive condition that, as a result of special mechanisms (such as lyonization, allelic exclusion, or a deletion in the homologous chromosome), has phenotypic manifestations.

Synonym(s): manifesting carrier

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.