Which blood group is the rarest?
According to the latest data, more than 7 billion people live on the planet Earth !!! All these people are carriers of unique DNA codes and blood groups.
Blood type and Rh factor
In domestic medicine the blood group is determined in accordance with the two most common methods:
- typology AB0;
- Rh (Rh) is a factor.
According to the ABO typology, these blood groups are distinguished:
- I - 0
- II-A
- III-B
- IV - AB
In accordance with the system of calculating the blood group for Rh (Rh), the factor distinguishes positive (+) and negative (-) Rhesus factor.
Which blood group is the rarest in the world?
To determine the most rare group of blood, both methods described above must be taken into account. By the ABO typology, the rarest is recognized IV (fourth) - AB blood group.
When determining the Rh factor, it turned out that most people in the world are its carriers. That is, a negative Rhesus factor is rare.
Thus, answering the question, which groupblood is the rarest, we can say with certainty: the fourth with a negative Rh factor. This fact is also said by our respected statistics: only 0. 45% of people on this planet have this blood group.
