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Which type of traits vary quantitatively due to the interaction of multiple genes?
Quantitative traits, also known as polygenic traits, vary due to the cumulative effects of multiple genes interacting with each other and the environment. Examples include height, skin color, and intelligence, where a range of phenotypes is produced rather than distinct categories. These traits are typically influenced by additive genetic effects, where the contributions of individual alleles combine to produce a continuous distribution of phenotypes.
What else can I help you with?
Does each gene only influence one trait?
No, each gene can influence multiple traits, a phenomenon known as pleiotropy. Additionally, traits are often governed by the interaction of multiple genes, making the relationship between genes and traits complex. Environmental factors also play a significant role in how genes express traits, further complicating this relationship.
Traits that are shaped by many genes are called what?
Traits that are produced by the interaction of several genes are called polygenic traits. Examples of polygenic traits are height and skin color.
What traits such as stem length in plants and skin color and height in humans are controlled by two or more genes. What is this called?
Traits controlled by two or more genes are referred to as polygenic traits. In plants, stem length can be influenced by multiple genes, while in humans, traits like skin color and height result from the interaction of several genes. This complexity leads to a range of phenotypes, as the combined effects of these genes create continuous variations rather than discrete categories.
Are single gene traits rare?
Single gene traits are relatively rare in complex organisms, as most traits are influenced by multiple genes and environmental factors. While some traits, like certain inherited disorders, can be attributed to a single gene, these are exceptions rather than the rule. In populations, polygenic traits, which involve the interaction of multiple genes, are far more common. Thus, while single gene traits exist, they are not the predominant type of genetic trait observed in most species.
Which exception to Mendelism involves the expression of traits that are controlled by multiple genes?
The exception to Mendelism that involves the expression of traits controlled by multiple genes is called polygenic inheritance. In this type of inheritance, multiple genes contribute to the observable trait, and the trait often shows a continuous variation instead of distinct categories. Examples of polygenic traits include height, skin color, and intelligence.
What is the opposite of polygenic trais?
The opposite of polygenic traits is monogenic traits. Polygenic traits are determined by the interaction of multiple genes, while monogenic traits are controlled by a single gene.
Does each gene only influence one trait?
No, each gene can influence multiple traits, a phenomenon known as pleiotropy. Additionally, traits are often governed by the interaction of multiple genes, making the relationship between genes and traits complex. Environmental factors also play a significant role in how genes express traits, further complicating this relationship.
What are the characteristics of polygenic traits?
Polygenic traits are determined by the interaction of multiple genes, each contributing a small effect towards the phenotype. They often display a continuous range of phenotypes rather than distinct categories. Polygenic traits are influenced by both genetic and environmental factors.
Traits that are shaped by many genes are called what?
Traits that are produced by the interaction of several genes are called polygenic traits. Examples of polygenic traits are height and skin color.
Two ways multiple alleles and polygenic traits differ?
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.
What traits that are caused by the interaction of the many genes said to be?
polygenic
What is the study of how traits are inherited through the interaction of Is the science of genetics?
Genes.
Traits that are produced by the interaction of several genes are said to be?
These are polygenic (which literally means "several genes").
Tell you about polygenic inheritance under genetics?
Polygenic inheritance refers to traits that are influenced by multiple genes, each contributing in a cumulative manner to the phenotype. These traits typically exhibit a continuous range of variation rather than distinct categories. Examples include human height and skin color, which are controlled by the interaction of multiple genes. Polygenic traits are also influenced by environmental factors.
What traits such as stem length in plants and skin color and height in humans are controlled by two or more genes. What is this called?
Traits controlled by two or more genes are referred to as polygenic traits. In plants, stem length can be influenced by multiple genes, while in humans, traits like skin color and height result from the interaction of several genes. This complexity leads to a range of phenotypes, as the combined effects of these genes create continuous variations rather than discrete categories.
When two different genes at the same locus control different phenotypes what is it called?
This would be known as epistasis because one gene blocks another from expressing itself. Epistasis could also be the interaction between genes.
How are multiple alleles different from polygenic traits?
Multiple alleles are genes that have more than two alleles. An example of this would be blood types, with ABO as three separate alleles.Polygenic traits are traits whose phenotype rely on alleles from different genes. An example of this would be hair type, which relies on genes from different parts of chromosomes.The main difference is that multiple alleles are genes with 3 or more alleles; polygenic traits do not necessarily have more alleles, but they rely on on multiple genes.
