heterozygote

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any cell or organism having two different genes (alleles) at one or more corresponding loci on homologous chromosomes. With respect to such loci a heterozygote will produce two different types of gametes. Compare homozygote.

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An individual exhibiting heterozygosity. Detection is critical in most programs to control genetic defects; methods used include karyotyping (rarely successful), test mating, blood typing, a full clinical pathology test spectrum, radiology.

n

An organism whose somatic cells have two different alle-lomorphic genes on the same locus of each pair of chromosomes. It can produce two different types of gametes.

For a list of words related to heterozygote, see:

• Genetics, Heredity, and Evolution - heterozygote: organism carrying different alleles for the same trait

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