Which of these is widely used in genetic engineering

Options

A. Anopheles
B. Dragon fly
C. Dragon lizard
D. Fruit fly

Explanation

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks which organism is widely used in genetic engineering among the provided options.

2. **Analyzing the Options**:
- Option A: Endophilus - This is a type of mosquito associated with the plasmodium parasite, not commonly used in genetic engineering.
- Option B: Dragonfly - This is an insect but not typically used in genetic engineering.
- Option C: (not mentioned in the transcript, but we assume it's another organism) - We need to analyze this option if provided.
- Option D: Fruit Fly (Drosophila melanogaster) - This is a well-known model organism in genetic engineering.

3. **Identifying the Correct Answer**:
- Among the options, the fruit fly (Drosophila melanogaster) is widely recognized for its use in genetic studies and engineering due to several advantageous characteristics.

4. **Reasons for the Use of Fruit Fly**:
- **Short Reproduction Cycle**: They reproduce quickly, allowing for rapid generation of offspring.
- **Ease of Genetic Manipulation**: Their genetics can be easily manipulated, making them suitable for experiments.
- **Small Size**: They occupy less space in a laboratory setting.
- **High Offspring Count**: They produce a large number of offspring, which is beneficial for genetic studies.

5. **Conclusion**: Based on the analysis, the correct answer is **Option D: Fruit Fly (Drosophila melanogaster)**.