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Three common blood alleles are A, B, and O. A person's blood type is determined by the combination of these alleles. People with type A blood have A alleles, people with type B have B alleles, people with type AB have both A and B alleles, and people with type O have neither A nor B alleles.

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6mo ago
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6mo ago

Three common blood alleles are A, B, and O. A person's blood type is determined by the combination of these alleles. People with type A blood have A alleles, people with type B have B alleles, people with type AB have both A and B alleles, and people with type O have neither A nor B alleles.

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15y ago

simply put. A B and O two copies of each allele per person. blood type a = ia ia OR ia io blood type b = ib ib or ib io Blood type o = io io Blood type AB = ia ib

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11y ago

An allele is one of several different forms of one's genetic material that is found in a person's DNA. There are 3 different alleles that determine blood type. They are A, B, and O.

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10y ago

The three blood type alleles are A, B, and O. The A and B alleles are codominant in blood types.

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Q: What are 3 blood alleles?
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What is a gene that has 3 or more alleles for a single trait?

An example of a gene with three or more alleles for a single trait is the ABO blood group gene. This gene has three main alleles - A, B, and O - which determine blood type. The different combinations of these alleles result in the various blood types (A, B, AB, and O) observed in humans.


What is an example of multiple alleles?

An example of multiple alleles is the ABO blood system in humans, where the gene for blood type has three alleles: A, B, and O. Each person inherits two of these alleles, resulting in four possible blood types: A, B, AB, and O.


How do you describe how blood groups are examples of multiple alleles and codominance?

Blood groups are examples of multiple alleles because there are more than two possible alleles (A, B, O) that determine an individual's blood type. Codominance refers to the situation where both alleles are expressed in the phenotype, as seen in the AB blood type where both the A and B alleles are expressed equally.


Blood type in humans is controlled by how many alleles?

Blood type in humans is controlled by three alleles at the ABO gene locus on chromosome 9. These three alleles are responsible for determining the blood types A, B, AB, and O. Each person inherits one allele from each parent, resulting in various blood type combinations.


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.

Related questions

How many alleles are there for blood type-?

There are three alleles for blood type: IA=Blood type A IB=Blood type B i=Blood type O The alleles for blood type A and B are codominant so when someone contains the IA and IB alleles, their blood type is AB.


What is a gene that has 3 or more alleles for a single trait?

An example of a gene with three or more alleles for a single trait is the ABO blood group gene. This gene has three main alleles - A, B, and O - which determine blood type. The different combinations of these alleles result in the various blood types (A, B, AB, and O) observed in humans.


Blood type in humans is controlled by which alleles?

Human blood type is determined by codominant alleles.


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).


Why does the baby have only two alleles if the inheritance of blood type is controlled by three alleles?

Blood type inheritance is determined by three alleles (A, B, O), but an individual inherits only two alleles, one from each parent. This means a baby can have only two alleles for blood type, such as AO or BO, even though three alleles exist in the population.


What is an example of multiple alleles?

An example of multiple alleles is the ABO blood system in humans, where the gene for blood type has three alleles: A, B, and O. Each person inherits two of these alleles, resulting in four possible blood types: A, B, AB, and O.


How do you describe how blood groups are examples of multiple alleles and codominance?

Blood groups are examples of multiple alleles because there are more than two possible alleles (A, B, O) that determine an individual's blood type. Codominance refers to the situation where both alleles are expressed in the phenotype, as seen in the AB blood type where both the A and B alleles are expressed equally.


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.


Blood type in humans is controlled by how many alleles?

Blood type in humans is controlled by three alleles at the ABO gene locus on chromosome 9. These three alleles are responsible for determining the blood types A, B, AB, and O. Each person inherits one allele from each parent, resulting in various blood type combinations.


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.


What are three different alleles used to represent blood type?

The three alleles are A, B, and O


Is the three alleles of the single gene that controls blood type is said to be what alleles?

The three alleles of the single gene that controls blood type are typically referred to as A, B, and O. The A and B alleles are co-dominant to each other, while the O allele is recessive to both A and B.