Ab Blood Type Genetics

November 07, 2020

Ab blood type is usually a result of getting the a blood type gene from one parent and the b blood type gene from the other parent. O blood type people inherited two o genes.

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Is ab with less than 1 of the population having this type.

Ab blood type genetics. Statistics from the american red cross show that the following are the most rare forms of the. Just like eye or hair color our blood type is inherited from our parents. Like eye color blood type is passed genetically from your parents.

The abo blood type is controlled by a single gene the abo gene with three types of alleles inferred from classical genetics. Blood types a and b are co dominant so if the father has blood type aa and the mother has blood type bb the child will have a blood type of ab. Everyone has an abo blood type a b ab or o and an rh factor positive or negative.

It s determined by whether or not you have the rhesus rh group d antigen on your red blood cells there are over 30 rh antigens but d is the important one here. The positive and negative at the end of your blood type is a completely separate entity from abo. Each biological parent donates one of two abo genes to their child.

Click on a blood type below to see how it is. The least common blood type in the u s. Blood groups are inherited from both parents.

The a and b genes are dominant and the o gene is recessive. The gene encodes a glycosyltransferase that is an enzyme that modifies the carbohydrate content of the red blood cell antigens. But cis ab is a result of getting a single allele that gives you both blood types all on its own.

Based on the underlying number of people in the a and b blood types the odds of that particular combination happening are simply lower than any other possibility. In genetics cis means two things are happening on the same allele. People with ab blood inherited an a gene from one parent and a b gene from the other.

Whether your blood group is type a b ab or o is based on the blood types of your mother and father. Blood type o is recessive so a child will only have this blood type if he or she gets two o blood type genes from his or her parents. I i a and i b the i designation stands for isoagglutinogen another term for antigen.

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