What is cloning of DNA?

Explanation

### Step-by-Step Solution:

1. **Definition of DNA Cloning**: Cloning of DNA refers to the process of creating identical copies of a specific DNA segment. This is essential in biotechnology for various applications, including gene therapy, research, and the production of proteins.

2. **Process Overview**: The cloning process involves the replication and multiplication of DNA. It typically focuses on a segment of DNA that is often referred to as "alien DNA" or foreign DNA.

3. **Use of Host Organism**: The alien DNA is introduced into a host organism, which can be a bacterium, yeast, or even a plant or animal cell. The host organism provides the necessary cellular machinery for DNA replication.

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