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polygenic
polygenic, a. (pɒlɪˈdʒɛnɪk) [f. Gr. πολυ-, poly- + γενικός, f. γένος kind, or (in sense 2) from -gen 1 + -ic.] 1. Geol. = polygenous 1.1858 Mayne Expos. Lex., Polygenicus,..applied to a rock which owes its origin to fragments of different rocks united by calcareous cement..; or to divers fragments o...
Oxford English Dictionary
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Polygenic score
In genetics, a polygenic score (PGS), also called a polygenic index (PGI), polygenic risk score (PRS), genetic risk score, or genome-wide score, is a number Calculating a polygenic risk score
A polygenic score (PGS) (also sometimes called a polygenic risk score (PRS) or polygenic index (PGI)) is constructed
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Polygenic adaptation
Polygenic adaptation represents an alternative to adaptation by selective sweeps. Examples of polygenic adaptation
Polygenic adaptation is presumed to be the dominant mode of adaptation in artificial selection, when plants or animals
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polygene
polygene Genetics. (ˈpɒlɪdʒiːn) [Back-formation from polygenic a. 3; cf. gene1.] A gene whose individual effect on the phenotype of a single organism is too small to be observed, but which can act together with other, non-allelic polygenes to produce observable phenotypic variation in a quantitative...
Oxford English Dictionary
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Polygene
(polygenic) character. In modern sense, the inheritance mode of polygenic patterns is called polygenic inheritance, whose main properties may be summarized as follows:
Most
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monogen
monogen Chem. (ˈmɒnədʒɛn) [See mono- 2 and -gen 1.] An element which combines in one proportion only.1873 [see polygenic a. 2].
Oxford English Dictionary
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Immune mediated polygenic arthritis
An immune mediated inflammation of the joints of an animal caused by a dysfunction of the immune system, which attacks various components of the joint. This leads to variable degrees of synovitis, and typically occurs in multiple joints (a polyarthritis). The condition is hereditary (e.g. beagles), ...
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polymery
polymery Genetics. (pəˈlɪmərɪ) Also as mod.L. polyˈmeria. [ad. G. polymerie (A. Lang 1911, in Zeitschr. für induktive Abstammungs- und Vererbungslehre V. 113), ad. Gk. πολυµέρεια a consisting of many parts: see -ia1, -y3.] The phenomenon whereby a number of non-allelic genes can act together to prod...
Oxford English Dictionary
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Monogenic function
Functions can either have a single derivative (monogenic) or infinitely many derivatives (polygenic), with no intermediate cases.
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trigenic
trigenic, a. (traɪˈdʒɛnɪk) [app. f. tri- 5 b + Gr. γένος kind + -ic: the acid was so named by Liebig and Wöhler, 1846, regarding it as the product of three kinds of substances, cyanic acid, aldehyde, and ammonia.] 1. Chem. In trigenic acid, NH:2(CO.NH):CH.CH3, also called ethylidene (or ethidene) bi...
Oxford English Dictionary
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Infinitesimal model
The infinitesimal model, also known as the polygenic model, is a widely used statistical model in quantitative genetics and in genome-wide association Correlation between Relatives on the Supposition of Mendelian Inheritance", the original 1918 paper introducing the model, Fisher showed that if a trait is polygenic
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多基因遗传和环境影响 (文章) | 孟德尔遗传学的变化 | 可汗学院
可变表现度是指,拥有相同基因型的人群可以有更强或更弱的表现型。例如,在一群拥有致病基因型的人群中,有些人可能会得严重的疾病,而其他人可能会有更温和的病症。表达度的概念如下图所示,绿色阴影代表表现型的强度。
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Simple Mendelian genetics in humans
incomplete dominance, codominance, genetic linkage, environmental effects, and quantitative contributions from a number of genes (see: gene interactions, polygenic Human traits with probable or uncertain simple inheritance patterns
See also
Polygenic inheritance
Trait
Gene interaction
Dominance
Homozygote
Heterozygote
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Genomic selection
Furthermore, polygenic traits (or complex traits) controlled by several small-effects markers have been an incredible hassle for MAS. The statistical methods applied for identifying target markers and implementing MAS for improvement of polygenic traits have been unsuccessful.
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Quantitative trait locus
An example of a polygenic trait is human skin color variation. Writers have distinguished this kind of inheritance as polygenic, or quantitative inheritance.
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