What blood type is the baby born from the combination of O blood and ab blood?

Is there any law in blood group inheritance? What do you know about blood group inheritance? What blood type is the child born of type O blood and type ab blood?

Blood type has a certain genetic law, so we often see such scenes in film and television dramas: through blood tests, paternity tests, the truth is finally revealed, and so on. So people became curious about the matching of blood types.

In real life, especially the combination of five elements, constellations, blood types, etc. Parents-to-be also want to estimate their baby by blood type in some ways. So what blood type is the child born of type O blood and type ab blood? It is said that children born with this blood type will be hemolyzed. Is it true?/You don't say.

What blood type is the child born of O blood and AB blood? For convenience, I'll give you a breakdown as follows:

What blood type is the child born of female O blood type and male AB blood type?

Blood type is determined by three genetic factors: A, B and O, and most of them can judge the possible blood type of a baby born in the future according to the blood type of parents. From the chromosome point of view, people with type O blood are two O types, and people with type AB blood are an A and an AB, so their children may be an AO and a BO, but O is recessive, so children must show type A or B blood, not O or AB.

What blood type is the child born of male O blood type and female AB blood type?

In terms of chromosomes, people with O-blood have two O-types, and people with AB-blood have an A and a B, so their children may be an AO and a BO, but O is recessive. According to the law of intersection, children are generally blood types A and B. There will be no children with type o blood.

Blood type is hereditary, but it is not simply the same as one of the parents. Simply put, the gene of type A blood may be AA or AI; The gene of type B blood may be BB or BI; The gene of AB blood is AB; The gene of type O blood is type ii. Children inherit half of their parents' genes. According to Mendel's law of heredity, after controlling the blood type by combining the genes of your child, it is possible that Ai or AA is type A, Bi or BB is type B, AB is type AB and ii is type O..

So the children born of AB blood and O blood are type A or B blood.

The genetic law of blood type is:

A+A→A、O；

A+B→A、B、O、AB；

A+O →A、O；

A+AB→A、B、AB；

B+B→B、O；

B+O→B、O；

B+AB→B、A、AB；

O+O→O；

O+AB →A、B；

AB+AB→A、B、AB

O-type blood women and AB-type blood men, will they be hemolyzed when they have children?

As we all know, if the blood types are incompatible during blood transfusion, the two blood types will "fight" in the body, causing serious consequences, so blood type identification must be done before blood transfusion. Similarly, if the blood types of the mother and the child are incompatible, the antibodies in the mother will enter the baby through the placenta, so that the "battlefield" will be transferred to the baby, causing hemolytic diseases in the newborn.

ABO blood group incompatibility hemolytic diseases often occur when the mother's blood group is O and the father's blood groups are A, B and AB. Even so, not all babies born to O-blood mothers will have hemolytic diseases, but some babies will get sick, some babies will not get sick, some symptoms are mild, and some symptoms are serious. This is related to the number of maternal antibodies, the degree of binding between antibodies and fetal red blood cells, the strength of A or B antigens and the compensatory hematopoietic capacity of the fetus. ABO hemolytic disease of newborn is caused by ABO blood group incompatibility between mother and baby, mainly because fetal red blood cells A or B react with anti-A or anti-B antibodies from mother.

At present, women with type O have IgG anti-A(B) antibodies, a history of abortion or blood transfusion, and are prone to hemolysis, while their father's blood type is AB and their offspring's blood type is A or B. Newborn hemolytic disease is very common because of the incompatibility between husband and wife's blood types, so neonatal hemolytic disease is also very common. The neonatal department of Zhejiang Children's Hospital basically treats 20-30 hemolytic babies every month. Although the incidence of hemolytic disease of newborn accounts for about 10% of maternal-infant blood group incompatibility, the possible consequences are very terrible. Hemolysis can cause fetal anemia, heart enlargement, hepatosplenomegaly, fetal and placental edema and erythrocytosis in the blood. In severe cases, fetal hypoxia leads to intrauterine death. Newborns will also have yellow plague, and indirect bilirubin can make brain nuclei yellow through the blood-brain barrier, affecting intellectual development and neurological function.

Babies with mother type O and father type AB are most likely to get sick.

It is understood that the causes of hemolytic disease of newborn are mainly divided into ABO blood group system incompatibility and Rh blood group system incompatibility. In China, ABO blood group system is the most common, especially when the mother's blood group is O and the father is AB, because the children born to parents of this blood group are either A or B, which is prone to hemolytic diseases.

However, young parents need not worry too much. Under normal circumstances, the symptoms of ABO blood group hemolysis are very mild, and most children do not need special treatment after birth. As long as blue light irradiation and drug treatment are carried out in time, the child's condition can be alleviated, even if it is severe Rh hemolysis. If blood transfusion is given in time, most babies can turn to safety. Of course, mothers with type 0 blood should not be too nervous, because not every baby of a mother with type 0 blood will be hemolyzed, and AB0 hemolysis is generally mild. Careful observation of jaundice after delivery, early diagnosis and treatment, the prognosis is quite good.

In addition, prospective parents should also do a good job of prenatal and postpartum examination. If the prospective father is blood type A, blood type B or blood type AB, and the expectant mother is blood type O, and has a history of abortion or blood transfusion, it is necessary to pay attention to whether the newborn has anemia and the time and degree of jaundice, and not to confuse it with jaundice and anemia caused by other reasons, so as not to delay treatment. If you are pregnant with a baby, expectant mothers should remember to regularly detect antibodies in the blood from about 16 weeks, usually once every four weeks, and pay close attention to whether the baby has hemolysis. If there is abnormality, it can be treated during pregnancy, and the effect is good. Expectant parents with different Rh blood types are basically fine when they are pregnant for the first time, but if they have had an abortion or given birth to a child, they must check the Rh antibody in the expectant mother. If the antibody positive "activity" is very strong, it should not be pregnant, otherwise the risk of severe hemolysis of stillbirth and newborn will be greater.