Definition of heterozygote in English:



  • An individual having two different alleles of a particular gene or genes, and so giving rise to varying offspring.

    Compare with homozygote

    ‘In a population with variation on both sex chromosomes, one does not know which sex chromosome carries a specific allele in a heterozygote of the heterogametic sex.’
    • ‘In the case of heterozygotes, one allele was randomly selected for each individual.’
    • ‘Homozygotes and heterozygotes at individual sites were distinguished by their chromatographic patterns.’
    • ‘For example, in inbred populations there may be very few heterozygotes but several different homozygotes.’
    • ‘The individual tested was a heterozygote, necessarily possessing a copy of each allele.’



/ˌhedərōˈzīɡōt/ /ˌhɛdəroʊˈzaɪɡoʊt/