Can a person with blood type A and blood type B have a child with blood type O?

No, it won't! Type A and Type B can only give birth to type A, type AB, and type B children, and it cannot be type O!

Yes, the genotype of blood type A is IAI The genotype of blood type B is IBI As long as genes are freely combined to produce genotype II, it is blood type O.

From the perspective of ABO blood group system, all women with blood type O and men with blood type O are regarded as blood group malcooperation, and there is a chance of neonatal hemolysis, but among these people, neonatal hemolysis accounts for a very small proportion (about 5%), and the symptoms are mild; In terms of the RH system, if the woman is Rh-negative, the man is Rh-positive. The fetus is also Rh-positive, which is also regarded as blood group incompatibility, and there is also a chance of neonatal hemolysis, and the symptoms of neonatal hemolysis in the Rh system are more severe.

If there is a history of miscarriage, it is best to check the antibody titer before pregnancy, and the first examination generally needs to be checked by both husband and wife, and then the woman can be checked alone. Regular check-ups are required during pregnancy, usually every month.

At most, it is type A, B or AB, and if there is an O type, it will be a freak.

Possibly, I used to study biology, and it is possible for babies born of type A and type B to have four blood types, and the chance is 1 4

The factor of type A is composed of AI, type B is BI, type O is II, and A+B is equivalent to (A+I)*(B+I)=?

The landlord thinks about it himself!

Hehe, if you give birth to O, you have to ask who your wife did it with.

OK. The genes that determine blood type are a set of dominant genes, so the same blood type may correspond to multiple gene types. For example, blood type A may correspond to two gene types, AA, and AO; Similarly, blood type B also corresponds to two gene types, namely BB, and blood type and AB blood type only correspond to one gene type, which are OO and AB.

When the gene type A is AO and the blood type O is OO, the gene type produced by the combination may be AO and OO, i.e., blood type A and O.

Therefore, it is possible to have children with blood type O.

The 4th floor is illiterate...

Children born of type A and B blood types A, B, O, AB are all possible, each with a probability of 1 4, which is the simplest law of heredity.

Blood type is determined by the combination of three genetic factors such as A, B, and O, and most of them can be judged according to the blood type of the parents.

The genetic law of blood group 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＋aba、b；

ab＋ab→ab、ab。

Therefore, according to the above blood group genetic law table, it is completely possible to give birth to a child with blood type 0.