Question

A man with blood group A married a woman with blood group B .They have son with AB blood group and a daughter with blood group O work out cross and show the possibility of such inheritance

Answer 1

Required cross is given above

Possibilities are- 1. Blood group A

2. Blood group B

Answer 2

           IA      i

     B   IAIB  IBi

     i     IAi    ii

Explanation:

• If a man with A blood group married with a woman with B blood group and produces a son with an AB blood group and a daughter with an O blood group then the father must be having genotype IAI and the mother must have genotype IBI.
• i is the recessive genotype and IA and IB is dominant genotype so for O blood group two allele of i is required to be present in the offspring.

                                     IA      i

                              B   IAIB  IBi

                               i     IAi    ii

• So IAIB represents AB blood group and ii represents O blood group.

Learn more about ABO blood groups:

• https://brainly.in/question/7083459