Transgenic Animals

Transgenic animals are those animals that have been genetically modified by the insertion of foreign DNA into their genome. This technology is widely used in biomedical research and biotechnology to study gene function, produce medically important proteins, and develop new therapies.

Foreign DNA in all of its cells

The correct answer to the question is option C, which is "Foreign DNA in all of its cells." This means that transgenic animals have foreign DNA integrated into their genome in every cell of their body. This is usually accomplished by injecting foreign DNA into the pronucleus of a fertilized egg, which is then implanted into a surrogate mother.

Applications of Transgenic Animals

Transgenic animals have many applications in biomedical research and biotechnology, including:

1. Production of therapeutic proteins: Transgenic animals can be engineered to produce human proteins that are used in medicine, such as insulin, growth hormones, and clotting factors.

2. Disease modeling: Transgenic animals can be used to model human diseases, such as cancer, Alzheimer's disease, and cystic fibrosis.

3. Gene therapy: Transgenic animals can be used to test and develop gene therapy treatments for genetic diseases.

4. Agricultural applications: Transgenic animals can be engineered to have desirable traits, such as increased milk production or disease resistance.

5. Conservation: Transgenic animals can be used to save endangered species by introducing beneficial genes into their populations.

Conclusion

In conclusion, transgenic animals are those animals that have been genetically modified by the insertion of foreign DNA into their genome. This technology has many applications in biomedical research and biotechnology and has the potential to improve human health and conserve endangered species.