Speaking of blood type, there are many things. For example, blood type seems to have something to do with recruiting mosquitoes, giving birth to babies, identifying Long Mai, even personality, and then falling in love.
But what is the blood type? In these 7788 relationships, which are true and which are false? Today’s article will tell you one by one.
Is the blood type what?
There are many classification methods for human blood types, and now the more common ones include ABO blood type classification and Rh blood type classification.
1. ABO blood group
The blood type we generally refer to refers to ABO blood type, which is identified according to the blood type antigen on the surface of red blood cells.
There is a special protein on the surface of human red blood cells, which is medically called A or B antigen. If there is only A antigen, it is type A blood. Only B antigen is type B blood. Two kinds exist at the same time, namely AB blood. There is no either, that is, type O blood.
2. Rh blood group
As for Rh blood type, in short, it depends on whether there is D antigen on the surface of red blood cells. If there is, it is Rh (D) positive blood type. If there is no, it is Rh (D) negative blood type, which is referred to as Rh positive or Rh negative for short.
In our country, because the vast majority of people’s Rh blood type is positive, only about 1% of them are negative blood, which is very rare, so Rh negative blood is also called [panda blood].
Then, will a person’s blood type change?
This is really possible.
Under normal circumstances, the blood type will remain unchanged for life, but under some special circumstances, the blood type will also change.
To give a most representative example, two people with different blood types, after hematopoietic stem cell transplantation, the patient’s blood type will change to the donor’s blood type, and this change is long-term. This is relatively easy to understand, the blood is someone else’s, the blood type must also follow others.
In addition, some leukemia, lymphoma, radiotherapy and chemotherapy, etc., will lead to insufficient, change or decreased sensitivity of antigen substances on the surface of blood cells, thus leading to changes in blood type test results.
However, all of the above are only changes in the test results, and the genes that determine blood type have not changed.
My wife is type A blood, I am also type A, how is the child type O blood?
The article has already said at the beginning that according to the difference of A and B antigens on the surface of red blood cells, human blood types can be divided into A, B, AB and O. As for which antigen is on the surface of red blood cells, it is determined by the free pairing of ABO blood type genes of both husband and wife.
The whole genetic process is relatively complicated, so there is no specific explanation here. For common situations, please refer to the following figure:
In short, don’t easily doubt your other half.
So… [blood to identify relatives] reliable?
The blood of two people drips together, if they merge with each other, they will have kinship, but if they do not merge, they will not.
Such an interesting method of identifying relatives… is totally unreliable!
After blood of different blood types (usually ABO blood types) is mixed with each other, precipitation will occur, which is called “blood cannot fuse”; However, blood of the same blood type will not produce this kind of situation.
In other words, this method can simply see whether the blood types of two people are the same, but the same blood types do not mean that they are related. There are so many people in the world, but there are only 4 ABO blood types, isn’t it really [We are tired of cutting wood]?
Another is to directly drop the blood of two people into clear water…
The fact is, if blood is dropped directly into clear water, red blood cells will absorb water and burst. No matter how, the blood of the two people will look like they will fuse well.
Therefore, the sinister intentions in the TV series are good to have a look at, but don’t really believe what’s blood-dripping marriage.
I heard that people with type O blood recruit mosquitoes more?
Sorry, according to the existing research, it is not possible to prove which blood type recruits mosquitoes more.
In fact, there are many factors that attract mosquito bites, such as body temperature, exhaled gas, chemicals in sweat, color of clothes, etc. As for the relationship between blood type and mosquito recruitment and the possible reasons, scientists still need further research to find out.
For us, we should pay more attention to personal hygiene in our life and choose suitable mosquito repellent products. We don’t have to worry too much about our blood type.
At the end of the day, the discovery of blood type, for us, the first and most direct significance is to solve the problem of blood transfusion safety. However, other mysterious things linked to blood type, we should only listen to jokes after dinner, not take them seriously.