Desired genes have been introduced transgenic animals to obtain large scale production of useful biological products encoded by these genes. This approach is generally referred to as

Options

A. Hybridoma technology
B. Molecular farming
C. Gene therapy
D. Downstream processing

Answer

To solve the question regarding the approach used for the large-scale production of useful biological products by introducing desired genes into transgenic animals, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question states that desired genes are introduced into transgenic animals to produce biological products. We need to identify the term that describes this approach.

2. **Analyzing the Options**:
- **Option 1: Hybridoma Technology**: This technology involves creating hybrid cells to produce monoclonal antibodies. It does not relate to transgenic animals or the production of biological products from inserted genes.
- **Option 2: Molecular Farming**: This term refers to the use of transgenic plants or animals to produce valuable biological products, such as proteins or hormones, by inserting desired genes. This aligns perfectly with the question.
- **Option 3: Gene Therapy**: Gene therapy is focused on correcting defective genes in individuals, rather than producing biological products on a large scale.
- **Option 4: Downstream Process**: This refers to the purification and separation of biological products after they have been produced, which does not describe the introduction of genes into animals.

3. **Identifying the Correct Answer**: Based on the analysis, the correct answer is **Option 2: Molecular Farming**. This term accurately describes the process of using transgenic animals to produce biological products encoded by the introduced genes.

### Final Answer:
The approach is generally referred to as **Molecular Farming**.