Pattern of inheritance where `F_(1)` phenotype does not resemble either of the two parents and is in between the two is known as:

Options

A. Co-dominance
B. Incomplete dominance
C. Dominance
D. Both (b) and (c)

Explanation

To solve the question regarding the pattern of inheritance where the F1 phenotype does not resemble either of the two parents and is in between the two, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for a specific pattern of inheritance where the first filial generation (F1) does not show the traits of either parent but instead shows a blend or intermediate phenotype.

2. **Identify the Options**: The options provided are:
- A) Co-dominance
- B) Incomplete dominance
- C) Dominance
- D) Both B and C

3. **Analyze Each Option**:
- **Co-dominance**: In co-dominance, both alleles are fully expressed in the phenotype, resulting in offspring that display traits from both parents distinctly (e.g., AB blood type).
- **Incomplete dominance**: In this pattern, the phenotype of the heterozygote is intermediate between the phenotypes of the two homozygotes. For example, crossing a red flower with a white flower results in pink flowers.
- **Dominance**: This refers to one allele completely masking the effect of another allele. In this case, the F1 would resemble the dominant parent.
- **Both B and C**: This option suggests that both incomplete dominance and dominance are correct, which is not accurate.

4. **Determine the Correct Answer**: Based on the definitions:
- The correct answer is **B) Incomplete dominance**, as it perfectly describes the situation where the F1 phenotype is a blend of both parental traits.

5. **Conclusion**: Therefore, the pattern of inheritance where the F1 phenotype does not resemble either of the two parents and is in between the two is known as incomplete dominance.