Ask if blood type AB and blood type O can give birth to a child with blood type A

No, AB A and B are both dominant genes. But type O means that there are no clotting factors and is a recessive gene. Therefore, the blood group genes of the child born by the combination of ab and a should be ab aa ao bo, of which a and b are dominant genes, as long as there is a dominant gene, it will show dominant characteristics.

So it won't be O-type. ]

There are three genes for blood group: I, a and b. When i and b are together, it is type b. I and A are type A when they are together.

A and B are AB type when they are together. I and I together are O-shaped, and now you have i and b....He has A and B, the children of your door.

A gene comes from you. The other came from him. That is, to have an O-type child.

It is only possible that he also has i in his genes. How could my brother have a genetic mutation? The probability of this stable inheritance requiring a genetic mutation is basically 0].

Absolutely no blood type O will be born!! The combination of b + ab is: a, b, ab results are these three blood types. I learned biology very well in my third year of high school, and my memory of blood type is very clear. ]

Blood type is determined by genes, and genes are divided into dominant and recessive. If the genes of both people are AI, that is, everyone is one visible and one hidden, then the child's malignant blood group genes may be AA, AI, AI, II, that is, the child has 3 4 blood type A and 1 4 blood type O. So it is not a genetic mutation.

Genetic pattern of blood type: 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。The child may have type A, type B, or type AB. ]

Parental blood type A child may have a blood type A child may not have blood type a, b a, b, ab, o — a, ab a, b, ab o b, b o, b a, ab b, ab a, b, ab o, ab o].

Blood type inheritance must come from parents. So, can blood type A and blood type O give birth to a child with AB blood type? Let me introduce it to you, I hope you enjoy it.

1) The inheritance of blood type comes from the parents, and the following introduces the blood types of the children born to the parents according to their respective blood types: type and type A - type A and type O; Type and Type B - Type A, Type B, Type O, Type AB; type and type AB - type A, type B, type AB; type and type O - type A, type O; type and type A - type A, B, O, AB; type and type B - type B, type O; type and type AB - type A, type B, type AB; type and type O - type B, type O; type and type A - type O, type A; type and type B - type O, type B; type and AB type - type A, type B; type and type o - type O; type and type A - type A, B, AB; Type and Type B – Type A, Type B, Type AB; type and type AB - type A, type B, type AB; type and type O - type A, type B; Type and other types - type A, type B and not type O. 2) This is generally the case, but there are two exceptions:

1.O-type of the Mumbai type; 2.Genetic mutations.

a+b→a、b、o、ab;

Therefore, according to the above blood group inheritance law, if the husband and wife have blood types "A" and "B", the baby's blood type will have "O" or "AB" in addition to "A" or "B". Analysis: A, B, O blood types are inherited according to the law of Mendelian genetics, A, B, O, AB four blood types from the genetic point of view, type A has two genes, AA and AO, type B is BB and BO, O type and AB type are one each, that is, OO and AB.

When both parents are type A and both genes are AA, the child can only be type A. If both parents have Ao genes, the blood type of their children can be A and O. If one parent is a parent with a gene AA and the other parent is a type A parent with AO, the child's blood type is either a gene AA or a parent with AO.

The occasion of Type B is exactly the same. For parents with type O and AB, the child has a genetic identity of AO or BO, i.e. it can only be a blood type A or B. When both parents are type O, and of course the children are also type O, and when both parents are blood type AB, there are three possible blood types of children: type A with the gene AA, type B with BB, and type AB.

1. The child inherits half of the genes of each parent, and after combination, AI or AA may appear to be blood type A, BI or BB is blood type B, AB is blood type AB, and II is blood type O. Children born with blood type AB and blood type O have blood type A or B.

2. Blood type refers to the type of antigen on the surface of blood components (including red blood cells, white blood cells, and platelets). The blood group usually refers to the specific antigen type on the red blood cell membrane, and it is most closely related to clinical practice, and people are familiar with the red blood cell ABO blood group system and the RH blood group system.

In general, children born with blood type AB and blood type O are type A or B.

This is because the gene that controls blood type is AB in people with blood type AB, and the gene that controls blood type in people with blood type O is II. According to Mendelian laws of inheritance, it can be seen that the gene that controls the blood type of their children is AI, which means that blood type A is manifested, and BI is manifested as blood type B. So the child's blood type is either A or B.

Beauty and maternity knowledge.