What problem does hematic group and OAB have

summary

There are several kinds of blood types. Everyone should know what their blood type is. In this way, it will be more convenient if there is anything to do in the future. Now let's introduce the problem of parents' combination of type O blood and type AB blood.

What problem does hematic group and OAB have

First: parents are type O and AB, children should be type A or B. The reason is this. The expression of blood group is controlled by gene. A, B and O belong to ABO blood group system, which is a classification method of blood group.

Second, there are three genes a, B and I that control blood group. If AA or AI are combined, then this person is type a blood. Similarly, BB and Bi are type B blood, and II is type O blood. One parent with O genotype provided I gene, the other with ab genotype provided a gene or B gene. So the child can only be type A or type B.

Third: pregnant women for type O, husband for a, B or AB, then the mother and child have the possibility of ABO blood group incompatibility, need to carry out maternal serum antibody test. Antibody test time: the first time in 16 weeks of pregnancy, the second time in 28-30 weeks of pregnancy, after every 2-4 weeks.

matters needing attention

The combination of these two blood groups, it is not necessarily there will be problems, but also consider other circumstances, of course, pregnant women in pregnancy should be regularly checked.