The main technique involved in agricultural biotechnology is called :

Options

A. Tissue culture
B. Transformation
C. Plant breeding
D. DNA replication

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the main technique involved in agricultural biotechnology.

2. **Analyzing the Options**: The options provided are:
- Tissue culture
- Transformation
- Plant breeding
- DNA replication

3. **Defining Each Option**:
- **Tissue Culture**: This is a technique where plant tissues (called explants) are cultured in a nutrient medium under sterile conditions to produce new plants with desired traits.
- **Transformation**: This refers to the genetic alteration of a cell by the uptake of external genetic material.
- **Plant Breeding**: This is the science of changing the traits of plants to produce desired characteristics but is not a direct technique.
- **DNA Replication**: This is the process of making identical copies of DNA, which is not specific to agricultural biotechnology.

4. **Identifying the Correct Answer**: Among the options, tissue culture is the most relevant technique in agricultural biotechnology as it allows for the production of plants with desired qualities in controlled conditions.

5. **Conclusion**: Therefore, the correct answer to the question is **Tissue Culture**.

---