What is the name of transferred anti-insent protein in Bt- cotton?
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The synthesized crystalline proteins called 'endotoxins' are highly toxic to certain insects. They kill the insect by acting on the epithelium tissues of midgut of caterpillars. These protein often appear microscopically as distinctly shaped crystals and constitute about 20-30% of dry weight of sporulated cultures.
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Increases yield of cotton due to effective control of three types of bollworms, viz. American, Spotted and Pink bollworms. Insects belonged to Lepidoptera (Bollworms) are sensitive to crystalline endotoxic protein produced by Bt gene which in turn protects cotton from bollworms.
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