Blood Type A Genetics

November 08, 2020

The a and b are dominant and o is recessive. Therefore the blood type of your parents directly impacts what your blood type is.

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Your blood type is just a description of which antigens you have.

Blood type a genetics. Like eye color blood type is passed genetically from your parents. Though there are many groups of antigens the main two groups we talk about when it comes to blood type are abo and rh. In genetics blood type gene has two alleles each allele has genotype a b or o.

For example if an o gene is paired with an a gene the blood type will be a. Blood type also called a blood group is a classification of blood based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells rbcs. Similarly bo is type b aa is type a bb is type b oo is type o and ab is type ab.

So allele a combined with allele o is type a. The a and b genes are dominant and the o gene is recessive. Whether your blood group is type a b ab or o is based on the blood types of your mother and father.

Generally ab negative is considered to be the rarest. If you have type a blood your parents had. Click on a blood type below to see how it is.

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. These antigens may be proteins carbohydrates glycoproteins or glycolipids depending on the blood group system. When we inherit genes we.

For instance a parent with o blood with 2 o genes and a parent with a blood with 2 a genes will have an a blood type child with one a gene and one o gene. A gwas looks for correlations between dna markers tiny mutations scattered throughout a person s genome and an outward physical or mental trait of some kind. The study entitled the abo blood group locus and a chromosome 3 gene cluster associate with sars cov 2 respiratory failure in an italian spanish genome wide association analysis is a genome wide association study gwas.

The first group gives us the letter or letters of your blood type and the rh status gives the positive or negative part a o ab etc. Why you have an a blood type blood types are passed down genetically. According to the american red cross this is one of the most common blood types.

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. Blood type genetic basis. Blood type is an inherited trait that determines which kind of blood cells we produce.

There are dozens of blood typing systems but most people are familiar with the abo and rh systems which provide the eight basic blood types.

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