(iii) Transgenic animals are beneficial for humans:
1) It helps in study of disease and their treatment like Alzheimers disease, cystic fibrosis, cancers.
2) It helps in studuy of safety of vaccine like polio.
(3) It helps in production of various biological active chemicals like alpha-1-antitrypsin.
(4) It helps ini studying safety of chemical, drugs before final use in human beings.
