An organelle that has no DNA but capable of duplication is

Options

A. centriole
B. centrosphere
C. centromere
D. kinetochore

Answer

**Step-by-Step Solution:**

1. **Identify the Characteristics of the Organelle:**
The question specifies that the organelle has no DNA and is capable of duplication.

2. **Understand the Role of DNA in Organelles:**
Most organelles, like mitochondria and chloroplasts, contain their own DNA. However, some organelles do not have DNA.

3. **Consider the Options Given:**
The options provided are centriole, centrosphere, centromere, and kinetochore. We need to analyze each one based on the characteristics mentioned.

4. **Analyze Each Option:**
- **Centrioles:** These are cylindrical structures that play a crucial role during cell division. They do not contain DNA but can duplicate.
- **Centrosphere:** This term is not commonly used to refer to a specific organelle.
- **Centromere:** This is a region on a chromosome, not an organelle.
- **Kinetochore:** This is a protein structure on the chromosome, also not an organelle.

5. **Determine the Correct Answer:**
Given that centrioles are the only option that fits both criteria (no DNA and capable of duplication), the correct answer is **centriole**.

**Final Answer:**
The organelle that has no DNA but is capable of duplication is the **centriole**.

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