Question

Transgenic animals are produced by man. Explain any three ways in which such animals can be beneficial to humans.

Answer 1

1. As models to study normal physiology and development, transgenic animals expressing or lacking specific genes help scientists pinpoint gene functions and developmental roles.
2. As disease models for research and therapy, testing animals engineered with human disease genes (e.g., cancer, Parkinson’s) allows the study of disease mechanisms and preclinical testing of treatments.
3. For vaccine and chemical‑safety testing, transgenic animals can be made more sensitive or better suited to assessing vaccine safety and toxic effects, thereby speeding and improving safety evaluation.