question_answer

If a child is of O blood group and his father is of B blood group, the genotype of father is

A) \[{{\text{I}}^{\text{O}}}{{\text{I}}^{\text{O}}}\]

B) \[{{\text{I}}^{\text{A}}}\,{{\text{I}}^{\text{B}}}\]

C) \[{{\text{I}}^{\text{O}}}\,{{\text{I}}^{\text{B}}}\]

D) \[{{\text{I}}^{\text{O}}}\,{{\text{I}}^{\text{A}}}\]

Correct Answer: C

Solution :

Genotype of a person with blood group B may be \[{{\text{I}}^{\text{B}}}{{\text{I}}^{\text{B}}}\]or\[{{\text{I}}^{\text{O}}}{{\text{I}}^{\text{B}}}\], person with genotype\[{{\text{I}}^{\text{B}}}{{\text{I}}^{\text{B}}}\]cannot produce offsprings with blood group O in any case but if the persons genotype is\[{{\text{I}}^{\text{O}}}{{\text{I}}^{\text{B}}}\], then its offsprings may have blood group O. eg;