Multiple genes can interact to produce a trait. The number of genes involved can vary depending on the trait and the complexity of its genetic basis. Some traits may be influenced by only a few genes, while others may involve multiple genes interacting in complex ways.
The least number is 2, however this is very rare. Most traits require many genes to produce a trait.
The number of possible phenotypes for a given trait depends on how many genes control the trait. Each gene may have multiple alleles that can interact to produce different phenotypes. Additionally, environmental factors can also influence the expression of these genes, further increasing the diversity of possible phenotypes.
YES
Polygenic inheritance is when two or more genes interact to control a trait. Each gene contributes to the phenotype in an additive manner, resulting in a continuous range of variations for the trait. Examples include human height and skin color.
It was once believed that one gene controls one trait, so it is possible. Currently, the belief is that one gene can interact with other genes to control a trait, and that one gene can control more than one trait.
A dominant trait is expressed when two different genes for the same trait are present.
the number of genes that usually determine a trait
some human traits show a large number of phenotype because the traits are controlled by many genes. The genes act together as a group to produce a single trait
domanant trait
Polygenic trait.
Height is an example of a trait influenced by polygenic inheritance, where multiple genes contribute to determining an individual's height. Disorders such as heart disease and diabetes can also have a polygenic component, where several genes interact with environmental factors to increase susceptibility to these conditions.