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Question
'Bt' toxin is a/an
'Bt' toxin is a/an
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Solution
The correct option is A Extracellular crystalline protein
Bacillus thuringiensis (Bt) is a bacteria that produces proteins, which are toxic to insects. They secrete toxin extracellularly, it is a crystalline protein which can block the gut of insects on ingestion. Thus, it is widely used as a biological pesticide and, in fact, Bt is the most widely used biological pesticide in the world. The Bt application can happen one of two ways Bt can be sprayed on crops or it can be added to the DNA of genetically modified crops.
Bacillus thuringiensis (Bt) is a bacteria that produces proteins, which are toxic to insects. They secrete toxin extracellularly, it is a crystalline protein which can block the gut of insects on ingestion. Thus, it is widely used as a biological pesticide and, in fact, Bt is the most widely used biological pesticide in the world. The Bt application can happen one of two ways Bt can be sprayed on crops or it can be added to the DNA of genetically modified crops.
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