Question

If father has blood group A and mother has blood group $O$ then which one of the following blood groups may be found in their son?

• A. B
• B. AB
• C. $O$
• D. B, AB or $O$ .

Answer 1

Answer: (C)

: There are four different blood groups in human beings which are designated as $O,A,B$ and AB. The genotype of these blood groups will be- Group $A-AA$ or $Ao$ Group $B-BB$ or $Bo$ Group $AB-AB$ Group $O-Oo$ Thus when father has the blood group A and the mother has the blood group $O$ , there are only two blood groups i.e., A and $O$ are possible in the progeny.