Body Fluids and Circulation Question 38
38. The genotype of B-group father of an O-group child is
(a) $I^{O} I^{O}$
(b) $I^{B} I^{B}$
(c) $I^{A} I^{B}$
(d) $I^{O} I^{B}$
Show Answer
Answer : d
Hints & Solutions
(d) The genotype child of having O blood group is $I^{\circ} I^{\circ}$ If father has $B$ blood group it is either $-I^{B} I^{B}$ or $I^{B} I^{o}$ But if father has $I^{B} I^{B}$ then child cannot have $I^{\circ} I^{\circ}$, so father must have $I^{B} I^{\circ}$.
