Because there are several different blood types, and they can only be mixed in certain ways. And since the blood type isn't inherited straight off, parents aren't automatically a good match for their kids.
No, O and B blood type parents can not create an A blood type offspring. The only blood type offspring that can be created by these parents is O+, O-, B+, or B-.
Punnett squares are used to predict the possible blood types of offspring in a genetic cross involving parents with different blood types by showing all the possible combinations of alleles that the parents can pass on to their offspring. This helps determine the likelihood of each blood type in the offspring based on the parents' genotypes.
100% of the offspring of type O parents will be type O.
Certain blood types are not obtainable in offspring when the parents have certain blood types.
o-
through the placenta; through blood
Punnett squares can be used to predict the potential blood types of offspring in a genetic cross by showing the possible combinations of alleles from the parents. By filling in the squares with the parents' blood type alleles (A, B, or O), you can determine the likelihood of each blood type for the offspring.
Without any further information about the blood types of the offspring's parents, you can say that the offspring of a parent with type A and parent of type B could have any blood type -- A, B, O, or AB.
No, two A positive parents cannot have a child with O negative blood type. The A blood type parents can pass on either A or O alleles, but since they both have at least one A allele, any offspring would inherit A or AB blood types. The O negative blood type requires two O alleles, which is not possible with parents who both have A blood types.
No, it is not possible for an individual with the AS blood group to produce offspring with the AA blood group. The AS blood group indicates that the individual carries one A allele and one S allele (which is associated with sickle cell trait). For an offspring to have the AA blood group, both parents must provide an A allele, which cannot occur if one parent has an S allele.
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.
Without any further information about the blood types of the offspring's parents, you can say that the offspring of a parent with type A and parent of type B could have any blood type -- A, B, O, or AB.