I assume the question is "Is it possible for two parents with type B blood to have a child with type O blood?"
Yes they can, if both parents have BO genotype. The chance of the child having O blood is 25% in this case.
Source: http://en.wikipedia.org/wiki/Blood_type
Yes, they can have a child with blood type AB, which is the rarest of the four types.
It is not possible for two parents with blood type O negative to have a child with blood type AB. In the ABO blood group system, type O is recessive and AB is a combination of A and B, making it impossible for two parents with type O blood to produce a child with type AB blood.
It is not possible for two parents with blood types AB and B to have a child with O blood type. A child's blood type is determined by the combination of their parents' genes, and O blood type requires both parents to have at least one O gene.
it is possible but the child can be a positive
Yes, it is possible for two parents who are both blood group O to have a child who is blood group A. This can occur if both parents carry the A allele in their genes, even though their own blood types are O.
It's not possible for two O+ parents to have a child with A blood type. A child's blood type is determined by the combination of genes inherited from the parents, and in this case, the genetic combination would result in the child also having O+ blood type. A possible explanation could be an error in blood typing or paternity.
No, two type O parents can only have type O children. See the table below from www.dna-bioscience.co.uk/did_you_know_abo.shtml If you look at the row for mother's blood type O where it intersects with the column for father's blood type O, you will see that the child's blood type must be O. For the child to be Rh+, only one of the parents has to be Rh+.
The two possible genotypes for blood type A are AA and AO.
No. It is not possible for a child to have A if the parents are O blood type. If both parents have type O blood, then their children will also have type O blood. However, two parents with type A or type B blood (both the same or one of each) can sometimes have a child with type O blood. That is because the gene for type O blood is recessive. But they must carry the O type. However, two parents with type AB blood can have a child with type A, type B, or type AB blood, but cannot have a child with type O blood.
Offspring can inherit blood type from their parents based on their genotypes. Possible blood types include A, B, AB, and O. A child's blood type will be determined by the combination of blood type alleles inherited from their parents.
Generally no but in very rare circumstances, through mutations and incorrectly copying DNA, it is possible for two parents with type O blood to have a child with AB blood.
Yes, it is possible for two parents, one with AB+ blood type and the other with O+ blood type, to have a child with O+ blood type. When two parents with different blood types have a child, the child's blood type can be a combination of the parents' blood types through genetic inheritance.