Transgenic animal are use for :-

Options

A. A. Human protein `( alpha` -1- antitrypsin) used to treat immune disorder
B. B. Rosie, produced human alpha- lactalbumin
C. C. Transgenic mice are being used to test safety of the polio vaccine
D. D. Human protein `(alpha` - 1- antitrypsin ) used to treat emphysema

Answer

**Step-by-Step Solution:**

1. **Understanding Transgenic Animals:**
- Transgenic animals are those that have had a foreign gene deliberately inserted into their genome. This genetic modification allows them to express new traits or produce specific proteins that can be beneficial for various applications.

2. **Identifying Uses of Transgenic Animals:**
- The question asks for the uses of transgenic animals, and we have several options to evaluate.

3. **Evaluating Each Option:**
- **Option A:** Human protein alpha-1 antitrypsin used to treat immune disorder.
- This is correct. Transgenic animals, such as sheep, have been engineered to produce alpha-1 antitrypsin, which is crucial for treating conditions like inherited emphysema.

- **Option B:** Rosie produced human alpha-lactoalbumin.
- This is also correct. Rosie, the first transgenic cow, was modified to produce human alpha-lactoalbumin, which is beneficial for infant nutrition.

- **Option C:** Transgenic mice used to test the safety of the polio vaccine.
- This statement is true as well. Transgenic mice serve as model organisms for vaccine testing, ensuring safety before human trials.

- **Option D:** Human protein alpha-1 antitrypsin used to treat emphysema.
- This is a reiteration of Option A and is also correct, as alpha-1 antitrypsin is used to treat emphysema.

4. **Conclusion:**
- Since all the options provided are correct, we conclude that transgenic animals are indeed used for all the mentioned purposes.

**Final Answer:**
Transgenic animals are used for all of the options provided:
1. Human protein alpha-1 antitrypsin used to treat immune disorder.
2. Rosie produced human alpha-lactoalbumin.
3. Transgenic mice are being used to test the safety of the polio vaccine.
4. Human protein alpha-1 antitrypsin used to treat emphysema.

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