Bacillus thuringiensis produce a protein that kills

Assertion: Bacillus thuringiensis produces protein that kills lepidopteran insect only Reason :It forms active protein crystals during a particular phase of their growth

Some strains of Bacillus thuringiensis produce protein that kill certain Insects such as armyworm. Armyworm is

Bacillus thuringiensis is used as

Bacillus thuringiensis forms the protein crystals, which contains a toxic insecticidal protein. This proein I. is activated by alkaline pH of the gut of the insect pest. II.binds with the epithelial cells of the midgut of the insect pest ultimately killing it. III.does not kill the carrier bacterium which is itself resistance to this toxin. Which of the statement given above are correct ?

In case of Bt cotton how does the toxic insecticide protein produced by bacterium kill the insect pest but not the cell of Bacillus thuringiensis where the toxic protein is generated?

Bacillus thuringiensis forms protein crystals which contain insecticidal protein. This protein:

Bacillus thuringiensis forms protein crystals which contain insectidical protein. This protein