Are you waiting for the baby and you are interested in knowing his blood group? For this, it is not necessary to carry out laboratory studies. With the help of uncomplicated calculations, you can determine this parameter with acceptable accuracy.
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Many people think that if at mom and father the same blood type, then the baby will be the same. It is not right. The fact is that designations II, III - not easy Roman numbers. These are symbols that characterize the presence or absence of erythrocyte antigens in the blood. These antigens are two species A and V. If there are no them in the blood, then the person is the donor of the first group. In medical records, "0" are often written, which means the absence of antigens.
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If there is an antigen in the blood, then this is the third group. When the antigen is detected, the second. The fourth is considered the fourth itself, it means that in the blood there are two antigen A and B, so you can see an inscription on the card. The Austrian Botanist Mendel built a table by which, knowing parental data, you can determine the baby group of the kid. It is worth considering that parents with the first and second group can be born a child with any group. This is due to the fact that only the dominant antigen A or B will show itself, and may not show any. In this case, the baby will be born with the lack of certain proteins in cells. But there is a possibility for the appearance of crumbs with two antigens.
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With 100% probability, it is impossible to say what kind of baby will be blood, but you can assume it. But with confidence you can define a group that should not be. Thus, the parents with the first group will definitely be born a child with the same blood. Oddly enough, but at mom and dads with the III group can be born with a group with the first group. This is due to the fact that the antigen in may not show itself. An exception to the rules make up the inhabitants of India. They contain hidden antigens that do not appear, but they can know about themselves when the kid appears. Such an interesting fact is called the "Bombay phenomenon". It is impossible to calculate and predict blood group.
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If mother or father has both antigens, then the appearance of the baby with the I group is impossible. The same applies to children born from a parent with the absence of antigens, they cannot have the fourth group, as the second antigen in appear is nowhere.
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How to determine the Rh Factor? It is worth considering that only 15% of the inhabitants of the planet absent Rhus, that is, he is negative. Therefore, the appearance of crumbs into light with missing rezes, even if both parents have a positive one. But people with negative rhesus may appear only with the same Rh.
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In laboratories, analyzes using reference samples. If the antigens of blood proteins are cooled. Only one standard that matches the patient's blood will remain red without lumps and sediment.
To accurately determine the presence or absence of antigens can only be analyzed. Modern laboratories and family planning centers can determine the blood group and a rhesus factor even in a non-born baby. But such research is carried out only in extreme cases when the health of the mother and the baby threatens something.
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2045
