Question

Name the organism from which the ‘cry’ genes are isolated. Mention with the help of suitable example why and how bio-technologists have made use of ‘cry’ genes.

Answer 1

Bacillus thuringiensis 
- Source of insecticidal ( crystal) protein that control the cotton bollworms / corn borer 
- Specific Bt toxin genes were isolated from Bacillus thuringiensis , incorporated into several crop plants such as cotton