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Questions and Answers
Which insects are killed by the proteins produced by certain strains of Bacillus thuringiensis?
Which insects are killed by the proteins produced by certain strains of Bacillus thuringiensis?
- Corn borers and tobacco budworms
- Lepidopterans and coleopterans (correct)
- Beetles and flies
- Mosquitoes and armyworms
What happens to the Bt toxin protein after an insect ingests it?
What happens to the Bt toxin protein after an insect ingests it?
- It is neutralized by the alkaline pH of the gut
- It binds to the surface of midgut epithelial cells
- It remains inactive
- It is converted into an active form of toxin (correct)
Which genes code for the Bt toxin that controls cotton bollworms?
Which genes code for the Bt toxin that controls cotton bollworms?
- cryIAb and cryIAc
- cryIAc and cryIAb
- cryIAc and cryIIAb (correct)
- cryIAb and cryIIAb
