What blood type will a child born from blood type O and blood type AB have?

Blood type is hereditary, but it is not simply the case that both parents will produce the same blood type. Fifty percent of children born to an O-type mother and an AB-type couple are randomly distributed. In daily life, it is not necessary to identify all blood types, whether they are biological or not. Blood types in daily life can also cause some genetic problems. Blood type is also a relatively accurate method.

Different people have different concepts about blood type, and its classification is relatively broad. Let us briefly introduce the laws of blood type inheritance. The main regulations are that there is a certain regularity and heredity, so we can form a certain understanding in daily life based on these laws.

Blood type is hereditary, but it is not simply the same as that of one parent. To put it simply, the gene for type A blood may be AA or Ai; the gene for type B blood may be BB or Bi; the gene for type AB blood is AB; and the gene for type O blood is ii. A child inherits half of the genes from each parent. After the combination, it may appear Ai or AA for type A blood, Bi or BB for type B blood, AB for type AB blood, and ii for type O blood. A child born from a couple with type AB blood and type O blood will have type A or B blood. The inheritance rules of blood type are: 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

50% of the children born to a mother with type O blood and a father with type AB blood are type A and 50% are type B. This distribution is random. Not to mention two men, even different children born to a man and the same woman may have different blood types.

The above is the blood type of children born to type O blood and type AB blood. Fifty percent of children born to type O mothers and type AB couples are randomly distributed. In daily life, there is no need to identify all blood types. Different children born to a man and the same woman may have different blood types. So blood type is mainly a reference.