white eye mutation leads to depigmentation in many parts of the body in Drosophila. it is referred as

Options

A. Multiple alletes
B. Polymorphic effect
C. pleiotropic effect
D. Morphan syndrome

Answer

To solve the question regarding the white eye mutation in Drosophila and its relation to depigmentation, we will analyze the options provided and understand the concepts involved.

### Step-by-Step Solution:

1. **Understanding the White Eye Mutation**:
- The white eye mutation in Drosophila refers to a genetic alteration that results in the flies having white eyes instead of the typical red eyes. This mutation is due to a specific gene that affects eye color.

2. **Identifying the Effects of the Mutation**:
- The question states that this mutation leads to depigmentation in many parts of the body. This means that the gene responsible for the white eye mutation has effects beyond just the eye color.

3. **Exploring Genetic Terminology**:
- We need to consider the options given:
- **Multiple Alleles**: This refers to a gene that has more than two alternative forms. It does not directly relate to the effect of a single mutation causing multiple phenotypic changes.
- **Polymorphic Effect**: This term generally refers to the existence of multiple forms or variants in a population but does not specifically address the relationship of one gene causing multiple effects.
- **Pleiotropic Effect**: This is a genetic phenomenon where one gene influences multiple phenotypic traits. In this case, the gene responsible for the white eye mutation also causes depigmentation in other body parts.
- **Morphine Syndrome**: This is a genetic disorder affecting connective tissues and is unrelated to the question.

4. **Conclusion**:
- Given that the white eye mutation affects multiple traits (eye color and body pigmentation), the correct answer is that this is an example of a **pleiotropic effect**.

### Final Answer:
The white eye mutation leads to depigmentation in many parts of the body in Drosophila, and it is referred to as a **pleiotropic effect**.