There are cases when after birth young parents learned of his blood group, experiencing conflicting feelings, thinking that their child have changed - because neither father nor mother's blood is not the same child.In fact, there is no reason to worry, just need to remember what blood type the baby may inherit from their parents.
Often parents are interested in the question of how to know the baby's blood group (possible combination).It turns out that today it is possible to do this, knowing the parents' blood types.
Let's try to understand.To begin with let us turn to the history of the discovery of blood groups.This event occurred at the beginning of the twentieth century.Austrian Karl Landsteiner pointed out that the mixing of blood erythrocytes few people can behave in different ways: in one case, they stick together, and in the other there is no such reaction.This prompted scientists to think that there are compatible and incompatible with each other blood group.This discovery was of great importance, because through knowledge about the compatibility of certain groups was made possible its safe transfusion.
Two decades later, scientists learned about the inheritance from parent groups, which takes place in accordance with the laws of genetics, discovered by Mendel.As with any feature hereditary blood group is determined in accordance with what is transmitted from the parent gene by one of the pair.Thus, parents are not ready to transmit a group, but only one gene on the basis of which is formed by a group of blood and the baby, which is not always the same as the parent.
There are several different classifications of blood groups, but the most common - is AB0 system that includes 4 groups of blood.
How do I know the blood group of the child based on the parents' blood groups?Quite simply, it is necessary to turn to the law of inheritance of genetic traits.
one group, it is zero, denoted by 00. In this group, there are two identical gene derived from each parent.The first group of the child does not mean that the parents have the same group, but it must be present gene 0.
2 group designated by the letter A. Such an inheritance is possible not only in the case where the parents too, Group 2, butand then, if by some of the parents inherited a zero gene that has a characteristic feature: he is unable to manifest itself in the presence of A and B proteins.
3 group (B) is formed in succession in one gene from their parents, or in the case of a combination of genes B0.
when a child inherits one gene from their parents A and the other B, which are equal to each other, formed a group of 4 (AB).
All the above can be represented in a table.
| blood mother | blood father | |||
| 1 (00) | 2 (0A, AA) | 3 (0V BB) | 4 (AB) | |
| 1(00) | 1 (00) | 1 (00) 2 (0A) | 1 (00) 3 (0V) | 2 (0A), 3 (0V) |
| 2 (0A,AA) | 1 (00) 2 (0A) | 1 (00) 2 (0A, AA) | 1 (00) 2 (0A), 3 (0V), 4 (B) | 2(0A, AA), 3 (0V), 4 (BB) |
| 3 (0V BB) | 1 (00) 3 (0V) | 1 (00) 2 (0A), 3 (0V), 4 (AB) | 1 (00) 2 (0V BB) | 2 (0A), 3 (0V, BB), 4 (AB) |
| 4 (AB) | 2 (0A), 3 (0V) | 2 (0A, AA), 3 (0V), 4 (AB) | 2 (0A), 3 (0V, BB), 4 (AB) | 2 (AA)3 (BB), 4 (AB) |
We hope that our table "How do I know the blood group of the child, knowing the blood group of both parents' help to sort out this issue.Perhaps some parents are also doubts dispelled after its investigation.
turns out, the question of how to know the blood group, has a fairly simple answer.You can, guided by the knowledge of blood groups of parents, calculate its (admittedly possible here not one) or, conversely, to calculate the maternal and paternal blood group, based on the knowledge of children's blood.And in order to get the exact information you need to take a blood test for a group of blood in blood banks or clinics.
