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What is RNA interference? How does RNA i...

What is RNA interference? How does RNA interference helps to develop resistance in tobacco plant against Nematode infection?

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(a) Bt cotton: * Bacilolus thuringiensis producers crystals proteins called cry proteins which are toxic to larvae of insects like tobacco bud worm. Rmy worm, beetles and mosquetoes.
(b) Protection Against Nematodes:
* A nematode called Meloidegyne incognitia infects plants and reduces their yield.
*I The specific genes (in the form of cDNA) from the parasite are introduced into tha plant using Agrobacterium as the vector.
* The genes are introduced in such a way that both sense/coding RNA and antisense RNA (complementary to the sense/conding RNA) ar produced.
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