O Negative Blood Type Genetics

January 01, 2021

For example if an o gene is paired with an a gene the blood type will be a. When we separate the o types into negative and positive we find that o negative the universal donor blood constitutes less than 7 of the world s population.

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Our immune system is trained to recognize foreign substances in our body.

O negative blood type genetics. Therefore a person may have a rh blood type and can still have an rh gene see the chart below. Everyone has either a b ab or o type blood. The abo gene is on chromosome 9 and we all have two copies of it.

The mainstream media is only beginning to report on the scientific research being conducted on rh negative blood. Blood type o is the most common of the blood groups. One from mom and one from dad.

The a and b genes are dominant and the o gene is recessive. As with physical traits parental genetics determines both blood type and rh factor. People with blood type o have less of a chance of getting covid 19 according to a number of studies published all over the world during the pandemic but people with type a might be more vulnerable.

The rh factor is inherited separately from the abo blood types. Inheritance and blood blood type. Therefore there must have been some manner of intervention giving rise to rh negative blood groups.

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. Due to the absence of these antigens o negative blood group can only accept o negative blood. A person s type of blood also gets accompanied with an rh factor of positive or negative.

Research being conducted on rh negative blood is responsible for revolutionary medical break throughs. The a gene for blood type codes for type a antigen the b gene codes for b antigens and the o gene codes for no antigens. Your children would have a 50 chance of having type a blood the ao genetic type and a 50 chance of having type o blood the oo genetic type.

O can only receive o an individual with an o negative blood group doesn t have the three antigens a b and rh. Any other blood group introduced will lead to an immune attack against the foreign antigen. Type o blood is double recessive.

The o version of the gene is actually missing a letter so the protein it makes is a dud and can t do anything to the h antigen. Each parents donates one of two blood genes to the child. Similarly to the masking effect of the o gene in abo blood types the rh negative rh gene is also masked by the presence of a rh positive rh genotype.

If mom gives you an o version and dad gives you an a version your blood type will be a since you ll only have a. With a mother having ao blood and the father having oo blood the possible combinations are ao ao oo and oo. People who have rh negative blood especially o negative blood are highly valued for their genetic material in the medical community.

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