In pisum sativum pleiotropic factor influences

Options

A. The color of flower and the color of pod
B. The color of pod and the color of cotyledon
C. The color of seed coat the color of flower
D. The color of cotyledon and the color of seed coat

Answer

To answer the question regarding the pleiotropic factor in Pisum sativum (the pea plant), we will break down the concept of pleiotropy and analyze the options provided.

### Step-by-Step Solution:

1. **Understand Pleiotropy**:
- Pleiotropy refers to a situation where a single gene influences multiple phenotypic traits. This means that one gene can control or affect several unrelated traits.

2. **Identify Traits in Pisum sativum**:
- In pea plants, there are various traits that can be considered, such as the color of flowers, color of pods, color of cotyledons, and color of seed coats.

3. **Analyze the Given Options**:
- **Option 1**: Color of flower and color of pod
- These traits are controlled by different genes and are unrelated, so this option does not represent pleiotropy.
- **Option 2**: Color of pod and color of cotyledon
- Both traits can be influenced by the same gene (for example, yellow is dominant over green), making this option a candidate for pleiotropy.
- **Option 3**: Color of seed coat and color of flower
- Similar to option 1, these traits are controlled by different genes and are unrelated.
- **Option 4**: Color of cotyledon and seed coat
- Both traits can be influenced by the same gene (yellow is dominant over green), making this option another candidate for pleiotropy.

4. **Determine the Correct Answer**:
- The correct answer is **Option 4**: Color of cotyledon and seed coat. This is because both traits are influenced by the same gene, which demonstrates pleiotropy.

### Conclusion:
The pleiotropic factor in Pisum sativum influences the color of cotyledon and seed coat, as both traits are controlled by the same gene, where yellow is dominant over green.