Question

Choose the correct answer from the alternatives given.

A child has blood group O. If the father has blood group A and mother has blood group B, work out the genotypes of the parents.

• A. $I^A{I}^{A}and{I}^{B}i$
• B. $I^{A}iand{I}^{B}i$
• C. $I^{A}iandii$
• D. $iiand{I}^B{I}^B$

Answer 1

Answer: (B)

$I^{A}iand{I}^{B}i$

If father has blood group A, mother has blood group B, and the child with blood group O appears in progeny, this means that the parents are heterozygous.