Grafting of tissue or organ between individuals of different species is called

Options

A. autograft
B. isograft
C. xenograft
D. allograft

Answer

To answer the question "Grafting of tissue or organ between individuals of different species is called," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Types of Grafts**:
- Grafts can be classified based on the source of the tissue or organ. The main types include autografts, isografts, allografts, and xenografts.

2. **Define Autograft**:
- An autograft involves transferring tissue from one part of an individual's body to another part of the same individual. For example, skin grafts taken from one area of a person's body to another.

3. **Define Isograft**:
- An isograft refers to the transfer of tissue between genetically identical individuals, such as identical twins. This type of graft minimizes the risk of rejection.

4. **Define Allograft**:
- An allograft is the transfer of tissue between individuals of the same species but who are not genetically identical. This is commonly seen in organ transplants between humans.

5. **Define Xenograft**:
- A xenograft is the transfer of tissue or organs between individuals of different species. This is the key term we are looking for in the question.

6. **Identify the Correct Answer**:
- Based on the definitions, the correct answer to the question is "xenograft," as it specifically refers to grafting between different species.

### Final Answer:
The grafting of tissue or organ between individuals of different species is called **xenograft**.

---