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The IA and IB alleles code for the A and B antigens on the membranes of erythrocytes. These two antigens can exist together, as in a person with the AB blood type. Since the two alleles can express their character simultaneously, they are considered codominant.

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What is the blood type of person who is heterozygous having A and B alleles codominant?

Blood types is a good example of codominance. There are three alleles for blood type, that can be represented as IA, IB, and i. IA and IB are both dominant to i, but when an individual inherits one of each the former two alleles (IAIB), he or she will have type AB blood. Instead of one allele being straightforwardly dominant to another, or the resulting phenotype being a halfway stage between the two alleles, the phenotype has aspects directly resulting from each allele.


What are 3 blood alleles?

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.


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.


IA and IB are dominant to?

IA and IB is dominant to ii or sometimes preferred IO.


How do alleles make it possible for humans to have four different traits for blood type?

In human beings blood group is determined by four alleles IA, IB, Ii A gene contain only two alleles either IA IA-- result A group IA IB--- result AB group- because of the phenomenon of co-dominance IA Ii---- result A group- A is dominant over i IBIi--- result B group- B is dominant over i IB IB-- result B group Ii Ii-- result O group dr.sreejithnamboodiri@gmaill.com

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.


Is it possible for a with a blood type alleles Ia and Ib to have blood type a?

In the perfect world, no. IA and IB are codominant so both alleles are represented in the person's phenotype. Blood type A can only be represented by itself in a phenotype if the person's genotype is either IA IA or IA i.(The result of a DNA mutation may be able to create a phenotype of blood type A out of a (purebred) cross (of blood type A and B).No. IA and IB are both codominant . Blood type A can only be represented by itself in a phenotype if the person's genotype is IAIA or IAi. Blood type B can only be represented by itseft in a phenotype if the person's genotype is IBIB or IBi. If the phenotype (blood type) is AB the genotype is IAIB.


How many genes are involved i determining your blood type?

the human blood type is controlled by the gene 'I'. It is of 3 types Ia, Ib and i. the alleles 'Ia' and 'Ib' produce slightly different sugar polymers protruding on its surface while the 'i' doesn't produce any sugar polymers. as humans are haploid the contain 2 alleles out of the 3 I gene alleles, as the individual alleles come from the parent gamete. the alleles 'Ia' and 'Ib' are completely dominant over 'i', i.e, if alleles 'Ia' and 'i' are present then only the allele 'Ia' will be expressed, and the same for 'Ib' and 'i' happens, but when 'Ia' and 'Ib' are present together then they both express their own types, this is because of the co-dominance. Ia + Ia = IaIa = A Ia + Ib = IaIb = AB Ia + i = Iai = A Ib + Ia = IbIa = AB Ib + Ib = IbIb = B Ib + i = Ibi = B i + i = ii = 0 (zero commonly known as O)


What is the blood type of person who is heterozygous having A and B alleles codominant?

Blood types is a good example of codominance. There are three alleles for blood type, that can be represented as IA, IB, and i. IA and IB are both dominant to i, but when an individual inherits one of each the former two alleles (IAIB), he or she will have type AB blood. Instead of one allele being straightforwardly dominant to another, or the resulting phenotype being a halfway stage between the two alleles, the phenotype has aspects directly resulting from each allele.


What are 3 blood alleles?

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.


A child who inherits IA from his mother and IB from his father will have type?

A child who inherits the IA allele from their mother and the IB allele from their father will have type AB blood. This is because the IA and IB alleles are co-dominant, meaning that both alleles are expressed equally in the phenotype. As a result, the child will exhibit characteristics of both blood types, leading to the AB classification.


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.


IA and IB are dominant to?

IA and IB is dominant to ii or sometimes preferred IO.


How do alleles make it possible for humans to have four different traits for blood type?

In human beings blood group is determined by four alleles IA, IB, Ii A gene contain only two alleles either IA IA-- result A group IA IB--- result AB group- because of the phenomenon of co-dominance IA Ii---- result A group- A is dominant over i IBIi--- result B group- B is dominant over i IB IB-- result B group Ii Ii-- result O group dr.sreejithnamboodiri@gmaill.com


Does IA IA and IA IB result in the same phenotype?

No, only in a perfect world


What ab blood type?

Ia Ib


What is AB blood type?

Ia Ib