Explain with an example why are transgenic or genetically modified animals created?
Genetically modified or transgenic animals are produced for the given purposes: To be able to study how genes are regulated and how they affect the normal functioning and development of the body. For example, information gained about the biological role of growth factors like Insulin. Understand how genes contribute to the pathogenesis of the disease. A useful biological compound is produced by introducing a portion of the DNA encoding for that product in another organism. For example, Antitrypsin can be produced using transgenic organisms. This protein is used in the treatment of emphysema. To test the vaccine safety. For example, the Polio vaccine was tested in the Genetically Modified mouse. Toxicity level of the drug can also be tested using transgenic animals.
