Question

in a particular family one parent has type A blood the other has Type B they have four children what has type a wind site B what has Type A B and the last has Type O what are the genotypes of all six people in this family​

Answer 1

Answer:

Parental genotypes : AO & BO

Children genotypes : AB, AO, BO and OO

Explanation:

Blood groups in humans is a result of multiple allelism i.e. more than two types of alleles are present in the population which are responsible for existence of various blood groups in human population. It is known as ABO blood group system where A and B alleles are co-dominant while O allele is recessive to both i.e. it won't express in the presence of A or B or both of them. By co-dominant we mean to say that if both A and B alleles are present, they both will express.

The parents have A and B type blood while the children have all four types of blood groups. It is possible only when parents are heterozygous in their genotypes.

The cross depicting the genotypes of children is attached.

It is clear that children will have A, B , AB and O type of blood.

                                             

Answer 2

The parental genotypes are AO and BO, thereby the possible children's genotypic combinations include AB, BO AO, and OO.

What is the ABO blood system?

The ABO blood system is a system that determines the blood group based on three different alleles: A, B and O.

• The alleles A and B are codominant, whereas the allele O is a recessive allele.

• Codominance occurs when both alleles are expressed in the phenotype.

In conclusion, the parental genotypes are AO and BO, thereby the possible children's genotypic combinations include AB, BO AO, and OO.

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