Question

As per ABO blood grouping system, the blood group of father is B⁺ , mother is A⁺ and child is O⁺ . Their respective genotype can be

A. I^Bi/I^Ai/ii 

B. I^BI^B/I^AI^A/ii 

C. I^AI^B/iI^A/I^Bi 

D. I^Ai/I^Bi/I^Ai 

E. iI^B/iI^A/I^AI^B

Choose the most appropriate answer from the options given below :

(1) A only

(2) B only

(3) C & B only

(4) D & E only

Answer 1

Correct option is (1) A only 

Genotype of father with blood group B+ = I^Bi/iI^B
Genotype of mother with blood group A+ = I^Ai/iI^A
Genotype of child with blood group O+ = ii
Hence only ‘A’ is correct.