Production of organisms like bacteria that contain the same piece of recombinant DNA is called:

Options

A. Gene cloning
B. Cell cloning
C. Organ cloning
D. All of these

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the process of producing organisms, specifically bacteria, that contain the same piece of recombinant DNA.

2. **Identifying Key Terms**: The key terms in the question are "organisms like bacteria," "recombinant DNA," and "production."

3. **Defining Recombinant DNA**: Recombinant DNA is a form of DNA that is created by combining DNA from different sources. This is a fundamental concept in genetic engineering.

4. **Understanding Cloning**: Cloning refers to the process of creating copies of a particular DNA sequence or organism. In this context, it involves the replication of recombinant DNA within a host organism.

5. **Identifying the Correct Term**: The process of producing multiple identical copies of organisms that contain the same recombinant DNA is specifically referred to as "gene cloning." This is because it involves the cloning of genes that have been modified or combined from different sources.

6. **Conclusion**: Therefore, the correct answer to the question is "gene cloning."

**Final Answer**: Gene cloning.

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