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homozygous
(redirected from homozygosity)

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homozygous

In a living organism, having two identical alleles for a given trait. Individuals homozygous for a trait always breed true; that is, they produce offspring that resemble them in appearance when bred with a genetically similar individual; inbred varieties or species are homozygous for almost all traits. Recessive alleles are only expressed in the homozygous condition. Heterozygous organisms have two different alleles for a given trait.



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? Mentioned in ? References in periodicals archive
 
Homozygosity for CCTG mutation in myotonic dystrophy type 2.
The muscular dystrophies: from genes to therapies by Bloch, Robert J. / Physical Therapy
Two different mutations in the thyroid peroxidase gene of a large inbred Amish kindred: power and limits of homozygosity mapping.
Genetic factors that might lead to different responses in individuals ... by Fowler, Bruce A. / Environmental Health Perspectives
Those cases, known as HLA homozygosity, seem to pose a threat.
Genetic variation helps ward off AIDS by Science News
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