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4.Principles of Inheritance and Variation
medium
As per $\mathrm{ABO}$ blood grouping system, the blood group of father is $\mathrm{B}^{+}$, mother is $\mathrm{A}^{+}$and child is $\mathrm{O}^{+}$. Their respective genotype can be
Choose the most appropriate answer from the options given below :
A
$B$ only
B
$C, B$ only
C
$D, E$ only
D
$A$only
(NEET-2024)
Solution
Genotype of father with blood group $B^{+}=\left.\right|^{B_i / /\left.\right|^B}$
Genotype of mother with blood group $A^{+}=\mid A_i / i^A$
Genotype of child with blood group $\mathrm{O}^{+}=$ii
Hence only ' $A$ ' is correct.
Standard 12
Biology
