Which vector is used to introduce genes into dicots ?

Options

A. Electroporation
B. Electrophoresis
C. Ti plasmid infection
D. Microinjection

Answer

To answer the question "Which vector is used to introduce genes into dicots?", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Context**:
- Dicots are a group of flowering plants that have two seed leaves or cotyledons. They are significant in agriculture and biotechnology.

2. **Identifying the Vector**:
- In plant biotechnology, vectors are used to transfer foreign DNA into plant cells.

3. **Recognizing the Source of the Vector**:
- The most commonly used vector for introducing genes into dicots is derived from *Agrobacterium tumefaciens*. This bacterium is known for its ability to transfer DNA to plant cells, which is a natural process that occurs when it infects plants.

4. **Mechanism of Action**:
- *Agrobacterium tumefaciens* causes tumors in dicot plants by transferring a part of its DNA (the T-DNA) into the plant genome. This process is utilized in biotechnology to introduce desired genes into the plant.

5. **Disarming the Vector**:
- In genetic engineering, the T-DNA is disarmed by removing the genes responsible for tumor formation and replacing them with the desired foreign DNA. This allows the plant to express the new traits without causing harm.

6. **Conclusion**:
- Therefore, the correct answer to the question is that the vector used to introduce genes into dicots is the **Agrobacterium tumefaciens**.

### Final Answer:
The vector used to introduce genes into dicots is **Agrobacterium tumefaciens**.

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