The change in DNA of a bacterium by incorporation of DNA fragment released by another bacterium is called ………….

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the process by which a bacterium changes its DNA by incorporating DNA fragments released by another bacterium.

2. **Identifying the Process**: The process of DNA transfer between bacteria without physical contact is known as transformation.

3. **Defining Transformation**: Transformation is a method of genetic exchange in bacteria where a bacterium takes up free DNA from its environment, which may come from other bacteria that have lysed (broken down) and released their DNA.

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