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homozygoushomozygot (ger.)

  • Having identical alleles at one or more genetic loci. (OED 2011)
    gene heterozygous

    [the zygote formed by the union of gametes having similar allelomorphs, may be spoken of as a homozygote.

    Bateson, W. & Saunders, E.R. (1902). The facts of heredity in the light of Mendel’s discovery. Rep. Evol. Comm. Roy. Soc. I, 125-160: 126.]


    This Aa is the hybrid or ‘mule’ form, or as I have elsewhere called it, the heterozygote, as distinguished from AA or aa the homozygotes. […] it would a priori seem most probable that one sex is heterozygous and the other homozygous

    Bateson, W. (1902). Mendel’s Principles of Heredity: 23; 166.


    homozygous Having identical alleles at a given locus of a chromosome pair; isogenic; cf. heterozygous.

    Lincoln, R.J., Boxshall, G.A. & Clark, P.F. (1982). A Dictionary of Ecology, Evolution and Systematics: 117.