What if you get both IA and IB alleles?

What blood type will results in a person with one IA allele and one IB allele?

It is possible for two parents with the same blood type (A or B) to have a child with type O blood. Both parents would have to have a mixed genotype, such as one i allele together with either one iA or one iB allele. Blood types are determined by placing three drops of blood on a glass microscope slide.

Why the alleles IA and IB for blood group are codominant?

Alleles IA and IB are considered codominant as both these alleles dominate over recessive allele.

What is it called when both alleles show up?


= Codominance is a relationship between two versions of a gene. Individuals receive one version of a gene, called an allele, from each parent.

What happens when both alleles are the same?

If the two alleles are the same, the individual is homozygous for that gene. If the alleles are different, the individual is heterozygous. Though the term allele was originally used to describe variation among genes, it now also refers to variation among non-coding DNA sequences.

IT IS INTERESTING:  Frequent question: What are the terms used for similar and dissimilar gametes?

What blood type is IA IB?

IA, IB both are dominant forms so, person with ii allele have O blood group. Thus people with IAIA or IA i have blood group A and individuals having IBIB or IB i genotype have B blood group. Whereas person having genotype IAIB show phenotype AB and individuals with genotype ii have phenotype O [2].

Can O Positive and B Positive make a positive?

If a baby’s mother has an O positive blood type and a man has B positive blood type, it is possible for that man to be the baby’s father if the child has O type blood or B type blood (either positive or negative). So, in short, yes, it is possible for him to be the father.

What is the recessive allele over IA and IB?

The IA and IB alleles are both dominant over i, which is recessive.

When both alleles are expressed?

If both alleles are dominant, it is called codominance?. The resulting characteristic is due to both alleles being expressed equally. An example of this is the blood group AB which is the result of codominance of the A and B dominant alleles.

What is the dominance system for the IA and IB blood type alleles?

The IA and IB alleles show co-dominance. The IA allele is completely dominant to the i allele. The IB allele is completely dominant to the i allele.

What type of allele will be expressed if both dominant and recessive alleles are present?

A dominant phenotype will be expressed when at least one allele of its associated type is present, whereas a recessive phenotype will only be expressed when both alleles are of its associated type. However, there are exceptions to the way heterozygotes express themselves in the phenotype.

IT IS INTERESTING:  What does phenotype genotype Environment mean?

When an organism expresses both alleles equally this is known as?

Codominance. Heterozygous genotype that equally expresses the traits from both alleles.