Which of the following condition is true for codominance-

Options

A. Phenotype of `F_(1)` resembled either of the two parents
B. phenotype of `F_(1)` did not resemble either of two parents
C. Phenotype of `F_(1)` resembles both parents
D. None of these

Answer

To determine the correct condition for codominance, we need to analyze the definitions and characteristics of codominance in genetics.

### Step-by-Step Solution:

1. **Understand Codominance**: Codominance is a genetic phenomenon where both alleles in a heterozygous genotype are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive.

2. **Identify the Options**: The options given are:
- A) Phenotype of F1 resembles either of two parents.
- B) Phenotype of F1 didn't resemble either of two parents.
- C) Phenotype of F1 resembles both parents.
- D) None of these.

3. **Analyze Each Option**:
- **Option A**: This describes complete dominance, where one allele masks the effect of the other. This is incorrect for codominance.
- **Option B**: This suggests that the F1 phenotype does not resemble either parent, which is characteristic of incomplete dominance. This is also incorrect for codominance.
- **Option C**: This states that the phenotype of F1 resembles both parents. In codominance, both alleles contribute to the phenotype, making this statement true.
- **Option D**: This option states that none of the above are correct, which is incorrect since option C is true.

4. **Conclusion**: The correct condition for codominance is that the phenotype of F1 resembles both parents.

### Final Answer:
**C) Phenotype of F1 resembles both parents.**