Advertisements
Advertisements
प्रश्न
What is meant by the term bio-pesticide? Name and explain the mode of action of a popular bio-pesticide.
उत्तर
Biopesticide is a pesticide which is
- Not chemical in nature
- More specific in action against the pest
- Safer for the environment than chemical pesticides A popularly known bio-pesticide is Bt toxin, which is produced by a bacterium called Bacillus thuringiensis. Bt toxin gene has been cloned from this bacterium and expressed in plants. Bt toxin protein when ingested by the insect, gets converted to its active form due to the alkaline pH of the gut. The activated toxin binds to the surface of midgut epithelial cells and creates pores that cause cell swelling and lysis and eventually kill the insect.
APPEARS IN
संबंधित प्रश्न
How did the process of RNA interference help to control the nematode from infecting the roots of tobacco plants?
What is a GMO?
How has the use of Agrobacterium as vectors helped in controlling Meloidogyne incognita infestation in tobacco plants? Explain in the correct sequence.
How has the use of Agrobacterium as vectors helped in controlling Meloidegyne incognitia infestation in tobacco plants? Explain in correct sequence.
Explain the term biofortification. How is this technique useful for the production of ‘ golden rice?
Answer the following question.
List any four ways by which GMOs have been useful for enhanced crop output.
Which one of the followmg bacterium is used for the production of transgenic plants?
Bt brinjal is an example of transgenic crops. In this Btrefers to ______.
In RNAi genes are silenced using ______.
Name an organism that produce cry proteins.
