Final answer:
Transgenic animals have several applications including increased resistance to diseases, enhanced agricultural productivity, and the production of pharmaceuticals like insulin, but they are not used in d. improving weather forecasting technology.
Step-by-step explanation:
The applications of transgenic animals include: a) Increased resistance to diseases, b) Enhanced agricultural productivity, and c) Production of pharmaceuticals like insulin. Transgenic animals have been genetically modified to possess desirable traits such as disease resistance, which can lead to enhanced productivity in agricultural settings. Furthermore, they are used in the production of pharmaceuticals; for instance, goats have been developed to produce human proteins in their milk, and sheep also express human proteins that are used for medical purposes.
Transgenic mice are often utilized in scientific research to better understand gene functions and to develop treatments for human diseases. However, transgenic animals are not used for improving weather forecasting technology; that application does not align with the biological implications of transgenic modifications.