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What is an example of a human trait caused by a single gene with multiple alleles?
An example of a human trait caused by a single gene with multiple alleles is the ABO blood group system. This system is determined by the presence of different alleles at the ABO gene locus, specifically A, B, and O alleles. The combinations of these alleles result in four possible blood types: A, B, AB, and O, illustrating how multiple alleles can influence a single trait.
Why are there more genotypes and phenotypes for blood types?
There are more genotypes and phenotypes for blood types due to the presence of multiple alleles and the codominance of certain alleles in the ABO blood group system. The ABO blood types are determined by three alleles: A, B, and O. The combinations of these alleles lead to four main phenotypes (A, B, AB, and O), while the presence of the Rh factor (positive or negative) further increases the variety of possible blood types. This genetic diversity arises from evolutionary processes and the inheritance patterns of multiple alleles.
What has multiple alleles?
more than two alternative form of a gene in a population occupying same locus on a chromosome or its homologous are called multiple alleles example--------blood group in human being -------- drosophila has 15 alleles for eye colour ---------- rabbit has 4 alleles for coat colour
The blood type trait which is controlled by more than two alleles for a given gene and therefore is called?
The blood type trait that is controlled by more than two alleles for a given gene is known as the ABO blood group system. It involves three alleles: A, B, and O, which determine blood types A, B, AB, and O. This system results in four possible blood types due to the combination of these multiple alleles.
What is the difference between codominance and multiple alleles?
Codominance occurs when both alleles in a heterozygous individual are fully expressed, resulting in a phenotype that displays characteristics of both alleles, such as in blood type AB. Multiple alleles refer to the existence of more than two alternative forms of a gene within a population, allowing for a variety of genotypes and phenotypes, like the ABO blood group system where three alleles (A, B, O) determine blood type. While codominance describes the expression of alleles, multiple alleles describe the variety of alleles available for a trait.
What is determined by multiple alleles?
abo blood group
Which of the following is determined by multiple alleles?
Blood type in humans is determined by multiple alleles: A, B, and O. Each person inherits two of these alleles, resulting in four possible blood types: A, B, AB, and O.
ABO blood group expression is an example of?
ABO blood group expression is an example of a genetic trait that is determined by multiple alleles. The ABO blood group system is controlled by three alleles (IA, IB, i), which determine the presence or absence of antigens on red blood cells. The combination of these alleles in an individual's genotype determines their blood type.
What is an example of a human trait caused by a single gene with multiple alleles?
An example of a human trait caused by a single gene with multiple alleles is the ABO blood group system. This system is determined by the presence of different alleles at the ABO gene locus, specifically A, B, and O alleles. The combinations of these alleles result in four possible blood types: A, B, AB, and O, illustrating how multiple alleles can influence a single trait.
What genes are a good example of multiple alleles?
The human ABO blood group system is a good example of multiple alleles. There are three alleles involved: IA, IB and IO. If a person inherits two IA alleles, or IA and IO, they will be group A. If they inherit two IB alleles, or IB and IO, they will be group B. If you inherit two IO alleles you will be group O.
When more than two different alleles control a trait?
This phenomenon is known as multiple allelism, where there are more than two different variations of a gene (alleles) that can affect a single trait. In this case, individuals can inherit one of several possible alleles for the trait. Examples include the ABO blood group system in humans, where there are three alleles (IA, IB, i) that determine a person's blood type.
What has multiple alleles?
more than two alternative form of a gene in a population occupying same locus on a chromosome or its homologous are called multiple alleles example--------blood group in human being -------- drosophila has 15 alleles for eye colour ---------- rabbit has 4 alleles for coat colour
Does bloodgroup determine genotype?
No, blood group is determined by the presence or absence of specific antigens on red blood cells, whereas genotype refers to the genetic makeup of an individual. Blood group is not solely determined by genotype, as multiple genes can influence blood type.
The blood type trait which is controlled by more than two alleles for a given gene and therefore is called?
The blood type trait that is controlled by more than two alleles for a given gene is known as the ABO blood group system. It involves three alleles: A, B, and O, which determine blood types A, B, AB, and O. This system results in four possible blood types due to the combination of these multiple alleles.
When than two alleles control a trait?
The presence of more than two alleles that control a trait is called multiple allele. An example of this is the group gene of ABO blood that has three alleles.
What is the difference between codominance and multiple alleles?
Codominance occurs when both alleles in a heterozygous individual are fully expressed, resulting in a phenotype that displays characteristics of both alleles, such as in blood type AB. Multiple alleles refer to the existence of more than two alternative forms of a gene within a population, allowing for a variety of genotypes and phenotypes, like the ABO blood group system where three alleles (A, B, O) determine blood type. While codominance describes the expression of alleles, multiple alleles describe the variety of alleles available for a trait.
What are multiple allels in biology?
Multiple alleles is a type of heredity in which one gene has more than two alleles. For example, in humans the gene for blood group has three alleles, A, B, and O. Even though there are three alleles in the population, a person can only inherit two alleles, one from his/her mother and one from his/her father.
