Many possible genotypes, producing ,any possible phenotypes.
Polygenic traits result in more variation because so many more alleles are involved in the process of reproduction.
epistasis
For a single gene trait with two alleles, one dominant and one recessive, there are three possible genotypes: homozygous dominant (AA), heterozygous (Aa), and homozygous recessive (aa). In terms of phenotypes, there are typically two: the dominant phenotype (AA and Aa) and the recessive phenotype (aa). Thus, there are three genotypes and two phenotypes for this trait in the population.
It depends on the trait. Some traits exhibit simple Mendelian heredity, being governed by only one gene. However, many traits are governed by more than one gene, which is called polygenic inheritance.
When the expression of a trait is determined by many different influences, the trait is said to be polygenic. Polygenic traits are influenced by multiple genes, often interacting with environmental factors, leading to a continuous range of phenotypes. Examples include height, skin color, and intelligence, which illustrate the complexity of inheritance and expression in such traits.
Many possible genotypes, producing ,any possible phenotypes.
When more than two alleles are involved in the inheritance of a trait, it is called polygenic inheritance. Many quantitative characters have polygenic inheritance. Inheritance of blood groups is an example of polygenic inheritance in human being.When more than two alleles are involved in the inheritance of a trait, it is called polygenic inheritance. Many quantitative characters have polygenic inheritance. Inheritance of blood groups is an example of polygenic inheritance in human being.
In a pedigree of sex-linked traits, there are three possible genotypes for males: XY (unaffected), XeY (affected), and XeX (carrier). For females, there are two possible genotypes: XX (unaffected) and XeX (carrier). This makes a total of 5 possible genotypes in a sex-linked trait pedigree.
polygenic
Polygenic traits result in more variation because so many more alleles are involved in the process of reproduction.
Yes, a single gene can affect many traits. this is called plieotropy
Usually, traits are polygenic when there is wide variation in the trait. For example, humans can be of many different sizes. Height is a polygenic trait, controlled by at least three genes with six alleles. If you are dominant for all of the alleles for height, then you will be very tall. Should help students for the year 2022. (Note: May change for upcoming years) Hope it helped!
epistasis
For a single gene trait with two alleles, one dominant and one recessive, there are three possible genotypes: homozygous dominant (AA), heterozygous (Aa), and homozygous recessive (aa). In terms of phenotypes, there are typically two: the dominant phenotype (AA and Aa) and the recessive phenotype (aa). Thus, there are three genotypes and two phenotypes for this trait in the population.
An inherited trait is typically determined by multiple genes working together. The exact number of genes involved can vary depending on the trait. In many cases, dozens to hundreds of genes may contribute to a single inherited trait.
Polygenic inheritance refers to the determination of a trait that is influenced by the interaction of multiple genes. These genes can have additive or synergistic effects on the phenotype, resulting in a continuous range of variations for the trait. Examples of polygenic traits include height, skin color, and intelligence.
Polygenic trait, where multiple genes contribute to the expression of a single trait like skin color. Each gene may have a small effect on the trait, and their combined influence results in a continuous range of variation.