How is the blood type of children and parents interconnected? Rules of transfer by inheritance

Sometimes very serious scientific topics become popular and relevant to ordinary people. This concerns the inheritance of genetic traits and information, for example, how the blood group of children and parents is interconnected. This issue becomes the most acute in one of two circumstances: the definition of paternity and the search for a donor for transfusion in emergency cases. In principle, every person should know how to solve the problem for themselves in the second situation.

Should the blood group of children and parents be the same?

Every man always wants to see in his offspring his own external features. But there are cases when the baby grows like two drops of water like a grandfather on the maternal line or some other relative. And as a result, in some cases, doubts about true fatherhood creep into the soul of the head of the family. Especially acute situation can worsen when determining the blood type of the baby, threatening after that peace and family well-being. After all, some people think that the blood group of children and parents should coincide in the literal sense of the word. Otherwise for a man this is tantamount to proving treason. Let's look at this serious issue, warning the problems in the family.

How is blood group inheritance from parents determined?

The most reliable way, of course, is to determine this genetic trait by submitting tests. But long before the birth of the baby, we can assume what kind of blood will be his. The following table shows the rules of inheritance. The middle part at the intersection of these parents corresponds to the blood group of the child.

The blood group of children and parents may be completely different

Here are some examples of practical application of the data shown in the table. For example, if the father has the first blood group, and the mother - the fourth, it is likely the birth of a baby with a second or third blood group. Or, there are situations when inheritance occurs without any rules at all. When a combination of the second and third blood groups of parents, the baby can have any of all possible.

Blood group of parents and children: compatibility with transfusions

Unfortunately, it happens that in unforeseen cases (during an operation, after an accident) the parent at all desire can not help his own child. And all because of the fact that his blood group does not meet the requirements. Therefore, you should familiarize yourself with the principles that rely on blood transfusion. In our country do not fully follow these recommendations, preferring to use only the exact coincidence of the numbers of groups and Rh factors.