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What codominance is and give an example of codominant alleles explainiing why they are codominant.?
Codominance is a genetic phenomenon where two different alleles for a trait are expressed equally in the phenotype of an organism. An example of codominant alleles is the ABO blood group system, specifically the A and B alleles. When an individual inherits both the A and B alleles, their blood type is AB, displaying characteristics of both types without blending, which illustrates that neither allele is dominant or recessive. This results in both A and B antigens being present on the surface of red blood cells.
Is ABO blood group determined by multiple alleles?
Yes, the ABO blood group system is determined by multiple alleles. There are three main alleles involved in the ABO blood group system: A, B, and O. These alleles determine the presence or absence of specific antigens on red blood cells, which results in the different blood types (A, B, AB, or O).
Are there any traits in humans that are codominant?
Blood grouping. Type A and type B alleles are co-dominant over type O, so if you inherit a type A allele from one parent and a type B allele from the other, you will have both antigens on your red blood cells and you'll be type AB. One does not dominate over the other, both are expressed if present.
How is baby blood group decided?
There are three alleles for human blood groups. A, B and O. A and B are codominant, so are expressed together when this genotype is formed. AB. O is recessive and does not expresse unless it is homozygous recessive in expresion. OO. If, say, AO is the expression then only A would be expressed.
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 is determined by multiple alleles?
abo blood group
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.
Is ABO blood group determined by multiple alleles?
Yes, the ABO blood group system is determined by multiple alleles. There are three main alleles involved in the ABO blood group system: A, B, and O. These alleles determine the presence or absence of specific antigens on red blood cells, which results in the different blood types (A, B, AB, or O).
The ABO blood types are controlled by?
The ABO blood types are controlled by specific alleles of the ABO gene. These alleles determine the presence or absence of antigens on the surface of red blood cells, which in turn determines an individual's blood type (A, B, AB, or O).
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.
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.
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.
Are there any traits in humans that are codominant?
Blood grouping. Type A and type B alleles are co-dominant over type O, so if you inherit a type A allele from one parent and a type B allele from the other, you will have both antigens on your red blood cells and you'll be type AB. One does not dominate over the other, both are expressed if present.
How is baby blood group decided?
There are three alleles for human blood groups. A, B and O. A and B are codominant, so are expressed together when this genotype is formed. AB. O is recessive and does not expresse unless it is homozygous recessive in expresion. OO. If, say, AO is the expression then only A would be expressed.
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 trait is controlled by a gene with multi alleles?
The ABO blood groups in humans are controlled by multiple alleles.
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.
