One of the main objectives of biotechnology is to minimise the use of

1.	One of the main objectives of biotechnology is to minimise the use of insecticides on cultivated crops. Explain with the help of a suitable example how insect resistant crops have been developed using techniques of biotechnology.
Answer» By using the techniques of biotechnology, insect resistant crops have been developed. Some strains of Bacillus thuringiensis (Bt) produce protein crystals which contain a toxic insecticidal protein that kill some insects like lepidopterans, coleopterans and dipterans, etc. Specific Bt toxin genes were isolated from Bacillus thuringiensis and cloned in bacteria. Specific Bt toxin genes obtained from Bacillus thuringiensis are used in several crop plants like cotton by providing them resistance from insects. Bt toxins are insect-group specific coded by a gene called cry which are of various types—proteins encoded by the genes cryIAc and cryIIAb control the cotton bollworms, that of cryIAb controls corn borer

One of the main objectives of biotechnology is to minimise the use of insecticides on cultivated crops. Explain with the help of a suitable example how insect resistant crops have been developed using techniques of biotechnology.

Answer»

By using the techniques of biotechnology, insect resistant crops have been developed. Some strains of Bacillus thuringiensis (Bt) produce protein crystals which contain a toxic insecticidal protein that kill some insects like lepidopterans, coleopterans and dipterans, etc.

Specific Bt toxin genes were isolated from Bacillus thuringiensis and cloned in bacteria.
Specific Bt toxin genes obtained from Bacillus thuringiensis are used in several crop plants like cotton by providing them resistance from insects.

Bt toxins are insect-group specific coded by a gene called cry which are of various types—proteins encoded by the genes cryIAc and cryIIAb control the cotton bollworms, that of cryIAb controls corn borer

One of the main objectives of biotechnology is to minimise the use of insecticides on cultivated crops. Explain with the help of a suitable example how insect resistant crops have been developed using techniques of biotechnology.

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment