NEET · Biology · STD 12 - 4. principal of inheritance and variation
A man with blood group \(‘A’\) marries a woman with blood group \(‘B’\). What are all the possible blood groups of their offsprings?
- A \(A, B, AB\) and \(O\)
- B \(O\) only
- C \(A\) and \(B\) only
- D \(A, B\) and \(AB\) only
Answer & Solution
Correct Answer
(A) \(A, B, AB\) and \(O\)
Step-by-step Solution
Detailed explanation
(a): The man has blood group \(A\), thus its genotype can either be \(I^AI^A\) or \(I^AI^O\). Similarly, woman can either have \(I^BI^B\), or \(I^BI^O\) genotype. Thus, their offspring can have any of the blood groups \(A\) \((I^AI^A\) or \(I^AI^O)\), \(B\) \((I^BI^B\) or \(I^BI^O)\), \(AB\) \((I^AI^B)\) or \(O\) \((I^OI^O).\)
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