Examples of transgenic animals are

Options

A. cow
B. mouse
C. pig
D. all

Answer

**Step-by-Step Text Solution:**

1. **Understanding Transgenic Animals**: Transgenic animals are those that have had their genomes altered through genetic engineering. This means that specific genes have been inserted, modified, or deleted to study gene function, produce proteins, or for other biotechnological applications.

2. **Examples of Transgenic Animals**: There are several notable examples of transgenic animals that have been developed for various purposes:
- **Transgenic Mice**: Mice are commonly used in research as they can be genetically modified to study diseases and gene functions.
- **Transgenic Cows**: Cows can be genetically engineered to produce milk with enhanced nutritional properties or to be more resistant to diseases.
- **Transgenic Pigs**: Pigs have been modified to grow faster or to produce organs that can be used for transplantation in humans.
- **Transgenic Goats**: Goats can be engineered to produce proteins in their milk that are used for therapeutic purposes.

3. **Conclusion**: All the mentioned animals (cow, goat, pig, mouse) are examples of transgenic animals. Therefore, the answer to the question is that transgenic animals include cows, goats, pigs, and mice.

4. **Final Answer**: The most appropriate answer is that all the options provided (cow, goat, pig, mouse) are examples of transgenic animals.