Agrobacterium tumefaciens is an effective vector for use with

Options

A. corn
B. rice
C. wheat
D. soyabean

Answer

### Step-by-Step Solution:

1. **Understanding Agrobacterium tumefaciens**:
- Agrobacterium tumefaciens is a bacterium that is known for its ability to transfer DNA to plant cells. This property makes it a valuable tool in plant biotechnology.

2. **Role as a Vector**:
- A vector is a vehicle used to transfer genetic material into a target cell. In the context of Agrobacterium tumefaciens, it is used to introduce new genes into plant genomes.

3. **Mechanism of Action**:
- Agrobacterium tumefaciens naturally infects plants and transfers a part of its DNA (T-DNA) into the plant's genome, which leads to the formation of tumors (galls). This natural ability is harnessed for genetic engineering.

4. **Applications**:
- It is particularly effective for dicotyledonous plants (dicots) such as tomatoes, potatoes, and tobacco. However, it can also be used with some monocots (like rice and corn) through specific methods.

5. **Conclusion**:
- Therefore, Agrobacterium tumefaciens is an effective vector for use with various plants, especially in the development of genetically modified organisms (GMOs) for agricultural purposes.