Whenever the subject of blood group comes up. Then the question arises as to why 'O' positive or 'O' negative blood group is so common. The medical officer of the American Red Cross Society, Dr. Hear the answer to this question from Ross Heron. The scientific reason behind this is Dr. By Heron.
Most people's blood type is 'O'. Let us understand the answer from an American example. Dr. Ross Heron says that 45% of people in the United States have an O blood group. Of these, 38% are O group positive and 7% are O negative. The biggest reason for this is heredity. (PS: Fierce)
Simply put, human race has the biggest role in blood type.
Dr. Heron says what kind of people are scattered in different parts of the world. Each clan has a blood type. There are more Caucasians in the world. The origin of these tribes is connected with Europe. These are people of white descent. Most of these people have blood group 'O'. (PS Lighthouse) Human blood groups are genetic. Depending on the genes inherited from the mother and father. Like the blood groups of mothers and fathers, their offspring have blood groups or the blood groups of the human race match their parents. People with 'O' blood group have a special gene. Which change very little time. When a person of 'O' blood group marries a person of 'A' or 'B' blood group. Then the children's blood type becomes A, B or O. Dr. According to Ross Heron, the gene is passed on to the next generation because it is O-positive in the population. So the number of such people is high and blood type is common. (PS: University of Pennsylvania)
Find out why blood group 'O' is special. If your blood type is 'O negative' then you can donate blood to any person of any other blood type. Therefore, there is always a risk of low blood O-negative blood group (PS: Emoha).
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