What is the name of transferred anti-insect protein in Bt-cotton?
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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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Crystal or CRY proteins
Explanation:
The delta endotoxins called crystal proteins CRY proteins are anti-insect proteins present in Bt-cotton. The toxic protein is produced in an inactive form by B.thuringiensis. Still, when an insect ingests it, it is transformed into an active form of toxin due to the alkaline pH of the gut, which solubilizes the crystals, causing the bollworm to die.
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