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We are looking for the possible blood types of the PARENTS.

Available information:

  • Baby type A -- can be either AA or AO
  • At least one parent must be type A.
Baby receives one gene from each parent:
  • Mama type AA/AO + Papa AA/AO = Baby type AA, AO, OO
  • Mama type AA/AO + Papa BO = Baby type AB, AO, BO, OO
  • Mama type AA/AO + Papa AB = Baby type AA, AO, BB, BO, AB
  • Mama type AA/AO + Papa OO = Baby type AO, OO
Papa cannot be Type BB as that cross would only give AB or BO results.

Other than that, as long as Papa contributes an A or an O, the baby will be Type A.

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What is the genotype of a woman with A blood and a man with b blood and a child with o blood?

The woman would have genotype AO (IAIA) for blood type A, the man would have genotype BO (IBIB) for blood type B, and their child with blood type O would have genotype OO (ii). The child inherited one O allele from each parent.


What blood type would a baby have if both parents have blood type O positive?

The baby would have blood type O positive. A child can only inherit blood type O from parents who each have at least one O allele. And since O is recessive, both parents must have two O alleles to have blood type O.


What are the genotypes of the male parent blood type B mother type 0 and female parent blood type A father type B?

The parents have the following genotypes:Type B = genotype BB or BOType O = genotype OOType A = genotype AA or BOFor the appropriate crosses: BB/BO x OO = Baby Type BO or OOAA/AO x BB/BO = Baby Type AB, AO, OO


How could two individuals with blood type o produce a baby with blood type b?

Two individuals with blood type O can only pass on the O allele to their offspring, as blood type O is characterized by the genotype OO. Therefore, it is genetically impossible for them to produce a child with blood type B, which requires at least one B allele (genotype BB or BO). If a child with blood type B appears in this scenario, it may indicate that one or both parents are not the biological parents, or there may have been a rare case of a laboratory error in determining blood types.


Can B genotype marry a A and produce O Negative?

Yes, a person with a B genotype can marry someone with an A genotype and potentially have a child with O blood type, including O negative. This is because both parents could contribute the O allele to their child, resulting in an O blood type. The child's Rh factor being negative is determined by the presence of negative Rh alleles from both parents.

Related Questions

What will be the blood group of a child if the parents were bb?

If both parents are genotype BB, the child can only be blood type B. The child's genotype would also be BB.


What is the genotype of a woman with A blood and a man with b blood and a child with o blood?

The woman would have genotype AO (IAIA) for blood type A, the man would have genotype BO (IBIB) for blood type B, and their child with blood type O would have genotype OO (ii). The child inherited one O allele from each parent.


What blood type would a baby have if both parents have blood type O positive?

The baby would have blood type O positive. A child can only inherit blood type O from parents who each have at least one O allele. And since O is recessive, both parents must have two O alleles to have blood type O.


If a child does not have either one of his parents blood type is he there child?

yes. If one parent has blood group A (as in genotype AO) and the other has blood group B (as in genotype BO) can have a child with blood group O


What are the possible blood types of children from AB mother and an AB father?

The mother is genotype AB, the father is either genotype BO or BB. If the father is genotype BO, the children can be genotype AB, AO, BB, or BO. This results in children with phenotype blood types of: AB, A, or B. If the father is genotype BB, the children can be genotype AB, AB, BB, or BB. This results in children with phenotype blood types of: AB or B.


What are the phenotypes and genotypes of the offspring from the mating of a person with type B blood with a person with type O blood in codominance?

The offspring blood type with parents that have O and B blood types would come out with O positive. This is taught in biology. Based on the details of the question this initial answer is incorrect. Type O is not a dominant characteristic merely a common one. A person with type B blood could have a genotype of BO or BB so there are two potential answers to this question. The parent with O type blood can only have an OO genotype. If the parents are BB and OO then all offspring will be type B phenotypically and their genotype will be BO. If the parents are BO and OO then 50% of the offspring will have the BO genotype and 50% will have the OO genotype. Phenotypes will be B and O respectively. Since the question did not include any mention of the RH factor there is no way to determine that the offspring would be positive or negative. True codominance in blood types really only shows up with the AB genotype where the phenotype of the individual matches the genotype and the person has both A and B blood factors.


What are the genotypes of the male parent blood type B mother type 0 and female parent blood type A father type B?

The parents have the following genotypes:Type B = genotype BB or BOType O = genotype OOType A = genotype AA or BOFor the appropriate crosses: BB/BO x OO = Baby Type BO or OOAA/AO x BB/BO = Baby Type AB, AO, OO


Baby Y has parents with AB and A blood types have a daughter with type A blood, what is baby Y’s genotype?

The blood type A is determined by having either two A alleles (genotype AA) or one A and one O allele (genotype AO). In this case, since the parents have blood types AB and A, they can only pass on an A allele or a B allele to their child. If the parents have a daughter with blood type A, it means they both contributed an A allele, as the daughter cannot have a B allele since her blood type is A. So, the genotype of the daughter is AO. Now, if we consider Baby Y, we can infer that Baby Y could inherit one A allele from one parent (let's say from the parent with blood type A) and one A allele or one B allele from the other parent (the parent with blood type AB). Therefore, Baby Y's genotype could be either AA or AB.


If the mother blood type is B and father A and the child B what is the cross Genotype of both parents?

If the child is type B, then the father cannot be genotype AA, and must be type AO. Thus, the child cannot be type BB, but must be type BO. The mother can be type BB or BO.


Is it possible for two parents with type B blood to have with type O blood?

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


How could two individuals with blood type o produce a baby with blood type b?

Two individuals with blood type O can only pass on the O allele to their offspring, as blood type O is characterized by the genotype OO. Therefore, it is genetically impossible for them to produce a child with blood type B, which requires at least one B allele (genotype BB or BO). If a child with blood type B appears in this scenario, it may indicate that one or both parents are not the biological parents, or there may have been a rare case of a laboratory error in determining blood types.


What blood type can be found if the mother has type AB blood and the father has type A blood?

If the father is homozygous for the B blood group, giving him the BB blood genotype, and the mother's genotype is AB (the only genotype for the AB blood group), then their offspring could have either the AB or B blood groups. If the father is heterozygous for the B blood group, giving him the BO genotype, then their offspring could have the AB, A, or B blood groups. However, they could not produce an offspring with the O blood group.