Yes
gene therapy/ Polygenic trait
No, shoe size is not a Mendelian trait because it is influenced by multiple genes and environmental factors. It is considered a polygenic trait, meaning it is controlled by more than one gene, making it more complex than the simple Mendelian inheritance patterns.
Polygenic traits result in more variation because so many more alleles are involved in the process of reproduction.
A polyallelic trait is a trait controlled by multiple alleles (variants of a gene) at a single gene locus. This means there are more than two possible alleles that can influence the trait's expression, resulting in a range of phenotypic variations. This can lead to a complex inheritance pattern.
Alleles refer to different versions of the same gene. So a single gene can have multiple alleles. For example in fruit flies there is a single gene that controls eye color, and the eye color of the fly depends on the alleles they have for that gene (since they have two copies of every gene, being diploid). A polygenic trait refers to any inheritable trait that is controlled by multiple genes, and each of these genes can have multiple alleles. For example, eye color in humans is a polygenic trait. There are at least three different genes, each with multiple alleles, that determine eye color in humans. Polygenic traits don't follow patterns of mendelian inheritance. So in summation the difference is multiple alleles refers to different versions of one gene and polygenic traits refers to a single trait which is controlled by multiple genes (each with multiple alleles) Yes, or: Multiple alleles are "the existence of more than two alleles (versions of the gene) for a genetic traits. Polygenic traits are "[characteristics of organisms that are] influenced by several genes." So multiple alleles are more than two alleles for one trait, and polygenic traits are one trait that is influenced by multiple genes. This information came from my biology textbook, "Biology: Principles and Explorations" by Holt, Rinehart, and Winston.
gene therapy/ Polygenic trait
No, shoe size is not a Mendelian trait because it is influenced by multiple genes and environmental factors. It is considered a polygenic trait, meaning it is controlled by more than one gene, making it more complex than the simple Mendelian inheritance patterns.
This is called polygenic inheritance. Multiple genes contribute to the expression of a single trait in polygenic inheritance, resulting in a continuum of phenotypic variation. Traits like height, skin color, and intelligence are influenced by multiple gene loci.
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.
Trait.
trait :)
Polygenic Traits
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.
When more than one gene controls the expression of a trait, it is known as polygenic inheritance. Each gene may contribute a small amount to the phenotype, leading to a wide range of possible variations. This can result in continuous variation in the trait rather than distinct categories.
Multiple alleles are "the existence of more than two alleles (versions of the gene) for a genetic traits. Polygenic traits are "[characteristics of organisms that are] influenced by several genes." So multiple alleles are more than two alleles for one trait, and polygenic traits are one trait that is influenced by mulitple genes. This information came from my biology textbook, "Biology: Principles and Explorations" by Holt, Rinehart, and Winston.
One gene controlled one trait within Mendel's study, but the sickle cell anemia effects more than one trait.
It is indeed. Quantitative traits suggest that the traits are polygenic, which means that the trait is influenced by more than one gene and skin color is influenced by 3 genes (6 alleles). Skin color is also a multifactorial trait because there are also many environmental factors that change skin color, such as exposure to sunlight.