from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The condition of being homozygous

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the state of being homozygous; having two identical alleles of the same gene


Sorry, no etymologies found.


  • When the leukemia relapsed after 7 months, the patient received allogeneic stem-cell transplantation with CD34-positive peripheral-blood stem cells from a donor who had been screened for homozygosity for the 32-bp deletion.

    Stem Cell Transplants Squashed HIV and Leukemia

  • "This observation is remarkable because homozygosity for CCR5 delta32 is associated with high but not complete resistance to HIV-1," he noted.

    Stem Cell Transplants Squashed HIV and Leukemia

  • [26] Jaenisch R. Germ line integration of moloney leukemia virus: effect of homozygosity at the m-mulV locus.

    The 2007 Nobel Prize in Physiology or Medicine - Advanced Information

  • It is often the opposite process of inbreeding depression, which increases homozygosity.


  • In general, inbreeding will tend to increase the homozygosity of a population, like positive assortment.

    Population Genetics

  • This happens because, given enough time, any finite population will eventually become homozygous through drift (though if the population is large, the approach to homozygosity will be slow.)

    Population Genetics

  • Inbreeding increases the chance of homozygosity, by pairing family-carried alleles with themselves.

    The Song of The Dodo

  • The individual snakes were too much alike—high in homozygosity, low in variety of alleles—to be capable of much adaptive flexibility.

    The Song of The Dodo

  • In fact just the opposite is true — genetic diversity is invigorating (thus "hybrid vigor," well known to agricultural breeders), because it helps to ensure that breeding for homozygosity in desirable traits doesn't at the same time breed for homozygosity in undesirable traits at other sites on the genome.

    The Truth About Dogs

  • So a mating between two closely related individuals increases the likelihood that the offspring will wind up with the same gene for a given trait on both chromosomes — a state called homozygosity.

    The Truth About Dogs


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