How many phenotypes and genotypes are in blood group?

The ABO blood group antigens are encoded by one genetic locus, the ABO locus, which has three alternative (allelic) forms—A, B, and O. A child receives one of the three alleles from each parent, giving rise to six possible genotypes and four possible blood types (phenotypes).

What are phenotypes in blood?

The “phenotype” of any blood group refers to which antigens are detectable on the RBC, and it usually (though not always) corresponds to the genes that the patient carries. Phenotyping is used in blood banking in four main settings: For blood donors, to determine compatibility for a patient with an alloantibody.

Is blood type genotype or phenotype?

The AB parent can contribute an A or a B gene. Working the Punnett square results in a 25% probability of each of the following genotypes: AA, AO, AB, and BO. Okay, but what about the phenotypes? Remember, in the ABO blood groups, the phenotype is the blood type of the person.

What are the 6 blood type genotypes?

The different possible genotypes are AA, AO, BB, BO, AB, and OO. How are blood types related to the six genotypes? A blood test is used to determine whether the A and/or B characteristics are present in a blood sample.

What is phenotype example?

Examples of phenotypes include height, wing length, and hair color. Phenotypes also include observable characteristics that can be measured in the laboratory, such as levels of hormones or blood cells.

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What are the two most common blood phenotypes?

Results. Group B (37.39%) was the most common, followed by group O (31.85%). R1R1 and rr were the most common phenotypes amongst Rh positive and Rh negative groups, respectively. A rare phenotype R2Rz was found in one donor.

Is AA a genotype?

What is a Genotype? … There are four hemoglobin genotypes (hemoglobin pairs/formations) in humans: AA, AS, SS and AC (uncommon). SS and AC are the abnormal genotypes or the sickle cells. We all have a specific pair of these hemoglobin in our blood which we inherited from both parents.

What blood type is iBi?

The following genotypes will yield these blood types: • iAiA or iAi – Both genotypes produce the A protein (type A). iBiB or iBi – Both genotypes produce the B protein (type B). iAiB – This genotype produces the A and B protein (type AB).

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