from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The genetic condition of a zygote, especially with respect to its being a homozygote or a heterozygote.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The quality or characteristics of a zygote


Sorry, no etymologies found.


  • Errors in zygosity determination systematically inflate heritability estimates for nonmendelian characters, because very similar DZ twins are wrongly counted as MZ, while very different MZ twins are wrongly scored as DZ.

    Archive 2004-12-01

  • (CVS) or fetal blood sampling are known as zygosity studies.


  • Respondents also completed a “zygosity” questionnaire (Nichols & Bilbro, 1966) which had an accuracy of 93% when matched with blood-typing (Kasriel & Eaves, 1976).

    The Bass Handbook of Leadership

  • Genetic markers provide a much more reliable test of zygosity.

    Archive 2004-12-01

  • DNA profiling can be used to determine the zygosity of twins

    Archive 2004-12-01

  • Furthermore, the assay definitively resolves zygosity in female samples and can rule out samples that would otherwise be needlessly analyzed by Southern blot.

    Business Wire Travel News

  • Thank you for your interest in our zygosity testing services.

    Austin Criminal Defense Lawyer

  • Our laboratory has successfully completed your zygosity test and your test results have been mailed.

    Austin Criminal Defense Lawyer

  • We are pleased to report to you the results of the twin zygosity test that you requested.

    Austin Criminal Defense Lawyer

  • DNA tests by the center can be used to analyze siblingship, establish cousin or grandparent relationships and determine twin zygosity. Press Releases


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