An allele contributed by one parent is `I^(A)` and allele contributed by the other parents is `i`, the blood group of offspring will be

Options

A. A
B. AB
C. B
D. O

Answer

To solve the question regarding the blood group of the offspring when one parent contributes the allele \( I^A \) and the other contributes the allele \( i \), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Alleles**:
- One parent contributes allele \( I^A \).
- The other parent contributes allele \( i \).

2. **Determine the Genotype of the Offspring**:
- The genotype of the offspring will be a combination of the alleles from both parents. Therefore, the genotype will be \( I^A i \).

3. **Understand Blood Group Inheritance**:
- In the ABO blood group system, the alleles \( I^A \) and \( I^B \) are dominant over the allele \( i \).
- The allele \( I^A \) corresponds to blood group A.

4. **Determine the Phenotype from the Genotype**:
- Since \( I^A \) is dominant over \( i \), the presence of \( I^A \) in the genotype \( I^A i \) means that the phenotype (observable blood group) will be A.

5. **Conclusion**:
- Therefore, the blood group of the offspring will be A.

### Final Answer:
The blood group of the offspring will be A.

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