Give one difference between B-DNA and Z-DNA .

Explanation

To provide a clear and concise answer to the question about the difference between B-DNA and Z-DNA, we can summarize the key differences as follows:

### Step-by-Step Solution:

1. **Definition of B-DNA and Z-DNA**:
- B-DNA is the most common form of DNA found in living organisms, characterized by its right-handed helical structure.
- Z-DNA is a less common form of DNA that has a left-handed helical structure.

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