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A polygene is a member of a group of non-epistatic genes that interact additively to influence a phenotypic trait, thus contributing to multiple-gene inheritance (polygenic inheritance, multigenic inheritance, quantitative inheritance [1]), a type of non-Mendelian inheritance, as opposed to single-gene inheritance, which is the core notion of Mendelian inheritance.
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When a trait (human height) exhibiting continuous variation is plotted against a graph, the majority of population distribution is centered around the mean. [ 15 ] Galton's work is contrary to work done by Gregor Mendel; as the latter studied "nonblending" traits and kept them in different categories. [ 16 ]
The two graphics illustrate sampling distributions of polygenic scores and the predictive ability of stratified sampling on polygenic risk score with increasing age. + The left panel shows how risk—(the standardized PRS on the x-axis)—can separate 'cases' (i.e., individuals with a certain disease, (red)) from the 'controls' (individuals without the disease, (blue)).
Human height is a continuous trait meaning that there is a wide range of heights. There are an estimated 50 genes that affect the height of a human. Environmental factors, like nutrition, also play a role in a human's height. Other examples of complex traits include: crop yield, plant color, and many diseases including diabetes and Parkinson's ...
For example, Bambuti mythology and other creation stories from the pygmies of Congo state that the supreme God of the pygmies, Khonvoum, created three different races of humans separately out of three kinds of clay: one black, one white, and one red. [4] In some cultures, polygenism in the creation narrative served an etiological function ...
In grammar, the ergative case (abbreviated erg) is the grammatical case that identifies a nominal phrase [2] as the agent of a transitive verb in ergative–absolutive languages. [ 3 ] Characteristics
Most English compound nouns that consist of more than two words can be constructed recursively by combining two words at a time. Combining "science" and "fiction", and then combining the resulting compound with "writer", for example, can construct the compound "science fiction writer" or "science-fiction writer".