Centrosomes are present

Options

A. In plant cells only
B. In animal cells only
C. Both in plant and animal
D. None of these

Answer

To answer the question "Centrosomes are present," we need to analyze the options provided and understand the role and presence of centrosomes in different types of cells.

### Step-by-Step Solution:

1. **Understanding Centrosomes**:
- Centrosomes are cellular structures that play a crucial role in organizing microtubules and are involved in cell division. They are composed of two centrioles.

2. **Presence in Animal Cells**:
- Centrosomes are primarily found in animal cells. They are located in the cytoplasm and are essential for the proper functioning of the cell during division, as they help in the separation of chromatids.

3. **Presence in Plant Cells**:
- Plant cells do not have centrosomes in the same way animal cells do. Instead, they have microtubule organizing centers (MTOCs) that perform a similar function but lack the structure of centrioles.

4. **Evaluating the Options**:
- **Option A: In plant cells** - Incorrect, as centrosomes are not present in plant cells.
- **Option B: Only in animal cells** - Correct, as centrosomes are found only in animal cells.
- **Option C: Both in plant and animal** - Incorrect, as centrosomes are not present in plant cells.
- **Option D: None of these** - Incorrect, as centrosomes are indeed present in animal cells.

5. **Conclusion**:
- Based on the analysis, the correct answer is that centrosomes are present only in animal cells.

### Final Answer:
- **Centrosomes are present only in animal cells.**