| Direction: Each of these questions contains two statements |
| Assertion [A] and Reason [R]. Each of these questions also has four alternative choices, any one of which is the correct answer. You have to select one of the codes [a], [b], [c] and [d] given below. |
| Assertion [A] A woman can go to the court if a man refuses to own his child. He has blood group B and woman has A, while child has O. |
| Reason [R] Genetically she is right, he can be father of the child. |
A) Both A and R are true and R is the correct explanation of A
B) Both A and R are true, but R is not the correct explanation of A
C) A is true, but R is false
D) A is false, but R is true
Correct Answer: A
Solution :
[a] Both A and R are true and R is the correct explanation of A. Man has blood group B, it means he will have alleles \[{{I}^{B}}{{I}^{B}}\] or \[{{I}^{B}}{{I}^{O}}\] and woman has blood group A, that can have alleles \[{{I}^{A}}{{I}^{A}}\] or \[{{I}^{A}}{{I}^{O}}\]. So, there is possibility of a producing child with blood group O. In such condition, both man and woman are heterozygotes and have blood group genotype \[{{I}^{B}}{{I}^{O}}\] and \[{{I}^{A}}{{I}^{O}}\]., respectively.
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