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"polygenic inheritance"- the inheritance of quantitative traits, traits which are influenced by multiple genes.
Polygenic inheritance shows how multiple genes in combination with a person's environment can influence someone's phenotype, or physical appearance. A wide range is produced because the gene combinations are vast.
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What is a result of polygenic inheritance?
Polygenic inheritance results in traits that are controlled by multiple genes, leading to a wide range of possible phenotypes within a population. This can contribute to continuous variation in traits such as height, skin color, and intelligence.
Would a trait that has only two distinct phenotype more likely be a single-gene trait or a polygenic trait How do you know (3 points)?
A trait with only two distinct phenotypes is more likely to be a single-gene trait. This is because single-gene traits are typically controlled by one gene, resulting in discrete phenotypes, such as dominant and recessive. In contrast, polygenic traits involve multiple genes and usually exhibit continuous variation, leading to a wide range of phenotypes rather than just two distinct categories.
What is the condition called when there are many genes that affect a trait which are susceptible to changes due to the environmental factors?
This condition is known as polygenic inheritance. It involves multiple genes contributing to a trait, and the expression of these genes can be influenced by environmental factors. The combination of genetic and environmental influences leads to a wide range of variation in the trait.
If a trait shows a wide range of phenotypes it most likely is what type of allele?
A trait showing a wide range of phenotypes is likely to be influenced by multiple alleles. These alleles can produce a spectrum of phenotypic variations due to the different combinations and interactions of alleles present.
What type of inheritance pattern best describes how skin color is determined?
Skin color is determined by multiple genes with a polygenic inheritance pattern. This means that several genes contribute to skin color, and the variation in these genes leads to a wide range of skin tones in populations. This inheritance pattern allows for a continuous spectrum of colors rather than distinct categories.
How do you describes the inheritance of continuously varying traits using Mendel's rules of inheritance?
Mendel's rules of inheritance, such as the law of segregation and the law of independent assortment, apply to discrete traits with distinct phenotypes. For continuously varying traits, such as height or weight, the concept of polygenic inheritance is more relevant. Polygenic inheritance involves multiple genes contributing to the trait, resulting in a wide range of phenotypic variation.
What is a result of polygenic inheritance?
Polygenic inheritance results in traits that are controlled by multiple genes, leading to a wide range of possible phenotypes within a population. This can contribute to continuous variation in traits such as height, skin color, and intelligence.
Skin color in humans caused by several genes at several loci is an example of what multiple alleles at one locus incomplete dominance epostasis or polygenic inheritance?
Polygenic inheritance. Skin color in humans is controlled by multiple genes at different loci, each contributing to the overall variation in skin pigmentation. This leads to a wide range of skin colors observed in human populations.
What would be your clue that a character would have polygenic inheritance pattern?
Well, honey, if you see a trait that's controlled by multiple genes, each with small effects, then you might be dealing with polygenic inheritance. So, keep an eye out for characteristics like height or skin color that show a wide range of variation in a population. And remember, genetics can be a real mixed bag, just like my collection of ex-husbands.
Traits controlled by two or more genes are called what?
Traits controlled by two or more genes are called polygenic traits. In polygenic inheritance, multiple genes work together to produce a particular phenotype, resulting in a wide range of possible variations. Examples include height, skin color, and eye color in humans.
Would a trait that has only two distinct phenotype more likely be a single-gene trait or a polygenic trait How do you know (3 points)?
A trait with only two distinct phenotypes is more likely to be a single-gene trait. This is because single-gene traits are typically controlled by one gene, resulting in discrete phenotypes, such as dominant and recessive. In contrast, polygenic traits involve multiple genes and usually exhibit continuous variation, leading to a wide range of phenotypes rather than just two distinct categories.
What causes a wide range of phenotypes for some traits?
Some traits, such as eye color and hair color, have multiple alleles that control different aspects of the phenotype. Because there are multiple different possible combinations of alleles, you get a wide range of phenotypes.
What is the condition called when there are many genes that affect a trait which are susceptible to changes due to the environmental factors?
This condition is known as polygenic inheritance. It involves multiple genes contributing to a trait, and the expression of these genes can be influenced by environmental factors. The combination of genetic and environmental influences leads to a wide range of variation in the trait.
If a trait shows a wide range of phenotypes it most likely is what type of allele?
A trait showing a wide range of phenotypes is likely to be influenced by multiple alleles. These alleles can produce a spectrum of phenotypic variations due to the different combinations and interactions of alleles present.
What type of inheritance pattern best describes how skin color is determined?
Skin color is determined by multiple genes with a polygenic inheritance pattern. This means that several genes contribute to skin color, and the variation in these genes leads to a wide range of skin tones in populations. This inheritance pattern allows for a continuous spectrum of colors rather than distinct categories.
What is polygenes?
Polygenic inheritance is when a single trait is controlled by 2 or more sets of alleles.A polygenic trait is one whose phenotype is influenced by more than one gene.
What kind of variation must exist in a population that has a wide range of phenotypes?
Genetic variation must exist within the population, meaning individuals have different alleles. This genetic diversity results in a wide range of phenotypes that can be observed. Environmental factors can also contribute to phenotypic variation within the population.
