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Polygenic


polygenic
determined by many genes at different loci, with small additive effects
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row ...
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Definition of polygenic :
a character controlled by many genes.
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Polygenic
Controlled by or associated with more than one gene. Cf monogenic.
Related Terms: Gene ...
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Polygenic inheritance is a pattern responsible for many features that seem simple on the surface. Many traits such as height, shape, weight, color, and metabolic rate are governed by the cumulative effects of many genes.
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polygenic inheritance: the condition in which some characteristics are determined by an interaction of genes on several chromosomes or at several places on one chromosome; one example is human skin color.
polymerase chain reaction: see PCR.
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polygenic inheritance
(pol-ee-jen-ik) [Gk. polus, many + genos, race, descent]
An additive effect of two or more gene loci on a single phenotypic character.
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Polygenic Inheritance
A polygenic trait is due to more than one gene locus. It involves active and inactive alleles.
Active alleles function additively.
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polygenic inheritance. Inheritance of traits influenced by multiple alleles; traits show continuous variation between extremes; offspring are usually intermediate between the two parents; also known as blending and quantitative inheritance.
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Polygenic disorders: Genetic disorders resulting from the combined action of alleles of more than one gene (e.g., heart disease, diabetes, and some cancers).
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Together, the transpolygenic animals harbor about 2 Mb of human DNA from the Down syndrome region.
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Galton came close to rediscovering Mendel's particulate theory of inheritance, but was prevented from making the final breakthrough in this regard because of his focus on continuous, rather than discrete, traits (now known as polygenic traits).
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Identify sex-linked, co- dominant, incomplete dominant, multiple allele, polygenic traits
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Analyze sample pedigrees; determine type of inheritance ...
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Polygenic. Controlled by or associated with more than one gene. Polylinker. A short DNA sequence containing several re- striction enzyme recognition sites that is contained in cloning vectors. Polymer. A molecule composed of repeated subunits.
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