Polygenic trait refers to a trait that is controlled by multiple non-allelic genes. These genes are called polygenes. They are a group of genes that, when turned on, are expressed as a unit. Each of them produces an effect that adds up to the trait. Nevertheless, the effect of an indi...
What is a polygenic trait? Learn the definition of polygenic traits and about polygenic characteristics, polygenic selection, and polygenic traits...
This type of polygenic phenotypic trait is quantitative because it has a continuous variation over a range of measurement. Read Polygenic Trait | Definition, Characteristics & Examples Lesson Recommended for You Video: Polygenic Inheritance | Definition & Examples Video: Qualitative vs. Quantitative ...
A polygene refers to a group ofgenes that when expressed together produce a particularphenotypeor trait. The trait produced is therefore a result of the expression of multiple genes. This type of trait is referred to as apolygenic trait. In humans, it is exemplified by skin colour, height, ...
and it is shown that considerable response may be obtained for polygenic traits without essential changes in allele frequencies and genetic variability, and that the probability of fixation of alleles or genotypes because of selection will below when the trait is affected by a larger number of loci...
Wheat color provides a good example of polygenic inheritance, the contribution of more than one gene to a single trait. When a very dark red, completely homozygous individual is crossed with a white, completely homozygous individual, all of their progeny are phenotypically red. When these red ...
Stabilizing selection works mostly on traits that are polygenic. This means that more than one gene controls the phenotype and so there is a wide range of possible outcomes. Over time, some of the genes that control the characteristic can be turned off or masked by other genes, depending on...
The selection of these preferred traits can be very strong. After a particularly strong selection for a trait that is the most desirable, a selective sweep will happen. Not only will the genes that code for the favorable adaptation increase in frequency and be seen more often in the population...
What are examples of codominance, incomplete dominance, epistasis, pleiotropy, polygenic inheritance, X-linked traits? What is meant by the terms "dominant" and "recessive alleles"? Explain autosomal, dominant and recessive traits. What is the ...
of the pea plant, such as the color of the flowers, the color of the seeds, the height of the pea plant, etc. were inherited. He performed crosses, mating offspring to parents, to test one trait at a time. To explain the law of independent segregation, we will use the color of ...