A human protein which is being obtained from transgenic animals and is used to treat emphysema is

Options

A. alpha-lactalbumin
B. thyroxine
C. `alpha-`1- antitrypsin
D. insulin

Answer

To solve the question regarding the human protein obtained from transgenic animals that is used to treat emphysema, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: We need to identify a specific human protein that is produced using transgenic animals and is used in the treatment of emphysema.

2. **Analyzing the Options**:
- **Option 1: Alpha-lactalbumin**: This protein is involved in lactose production in mammalian milk. It is not related to the treatment of emphysema.
- **Option 2: Thyroxine**: This hormone is produced by the thyroid gland and regulates metabolism. It does not treat emphysema.
- **Option 3: Alpha 1 antitrypsin**: This is a human protein that can be produced in transgenic animals and is known to be used in the treatment of emphysema, particularly in individuals with alpha-1 antitrypsin deficiency.
- **Option 4: Insulin**: This hormone regulates blood sugar levels and is not used for treating emphysema.

3. **Identifying the Correct Answer**: Based on the analysis, the only option that fits the criteria of being a human protein obtained from transgenic animals and used to treat emphysema is **Alpha 1 antitrypsin**.

4. **Conclusion**: Therefore, the correct answer to the question is **Alpha 1 antitrypsin**.

### Final Answer:
The human protein obtained from transgenic animals that is used to treat emphysema is **Alpha 1 antitrypsin**.

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