The oldest of the blood types, Type O traces as far back as the human race itself. With primal origins based in the survival and expansion of humans and their ascent to the top of the food chain, it's no wonder Blood Type O genetic traits include exceptional strength, a lean physique and a productive mind.
Although type O comes from a recessive gene—if one parent has A or B blood, the child will be A or B—O is the oldest type, reports the BBC. A and B types only emerged in the last 20,000 years or so, and are still spreading.
In evolutionary sense, types A and B are the oldest, since those polymorphisms are shared with other primates. The human type O allele is a more recent mutation, but still probably at least one million years old (the Altai Neanderthal is type O, for example).
In molecular history, type A appears to be the 'oldest' blood type, in the sense that the mutations that gave rise to types O and B appear to stem from it. Geneticists call this the wild-type or ancestral allele.
Base on this theory, perhaps a few million years ago all people have had type O blood only, which is more resistant against many infectious diseases. The emergence and evolution of blood groups in humans is still not clear.
If you inherit an A from one parent and an O or A gene from another parent, you will have type A blood. Type B from one parent and type O or another type B gene from the other parent will give you type B blood. But inherit an A gene from one parent and a B from the other and you have AB type blood.
Around 33 percent of the Caucasian population in the United States has A-positive blood type.
Type A+ donors can help change the world by donating whole blood and by donating platelets (an apheresis procedure that takes longer but often goes to cancer patients). And Type A and AB plasma are often used for trauma patients and accident victims.
At least two of the extinct, ancient humans had type O blood, making them the “universal donor”, according to a new genetic analysis of remains of 45,000 year old individuals.
Rh-null or golden blood
When a person's blood lacks all 61 possible antigens, they are said to be Rh-null. Because Rh-null lacks all possible antigens, it can be donated to people who have blood types that are very different from the main eight.
There are some studies on this topic, first of all, statistics of patients in Wuhan. That percentage of patients demonstrates which blood type is most represented. The blood group A is the most represented in their population, and it is therefore logical that most patients have that blood group...
What's the rarest blood type? AB negative is the rarest of the eight main blood types - just 1% of our donors have it. Despite being rare, demand for AB negative blood is low and we don't struggle to find donors with AB negative blood.
Only one Neanderthal's blood had been typed in the past, and was found to be type O under the ABO system used to classify the blood of modern humans. Since all chimpanzees are type A, and all gorillas are type B, it was assumed that all Neanderthals were type O.
The most important or identifiable haplogroup for Vikings is I1, as well as R1a, R1b, G2, and N. The SNP that defines the I1 haplogroup is M253. A haplogroup is a group of similar haplotypes that share a common ancestor.
How rare is A positive blood? Around 30% of donors have A positive blood, making it the second most common blood type after O positive (36%).
Blood type, like all phenotypic traits, is rooted in your DNA. When you were conceived, you received one variation of blood type, or “allele,” from your mother and another from your father. If you inherited a Type A allele from your mother and a Type B allele from your father, you would have Type AB blood.
Chances are higher you'll live longer if you have type O blood. Experts think your lowered risk of disease in your heart and blood vessels (cardiovascular disease) may be one reason for this.
The blood type B was statistically more frequent among the centenarians than in the control subjects (29.4% vs 21.9%; P = . 04). From these findings, the authors concluded that blood group B might be associated with exceptional longevity.
Is A negative blood rare? Around 8% of donors have A negative blood.
The new group is called the Er blood group. According to a study in the journal “Blood,” there are now a total of five Er antigens in this group based on genetic variations. The blood type can cause immune cells to attack mismatched cells, which has happened in other cases where blood types are incompatible.
Research has suggested that certain blood types may be at risk of developing specific diseases or conditions. People with type A blood also have a higher natural propensity for developing other diseases, such as cancer and diabetes.