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

Biology · Class 12 · CBSEBiotechnology and its Applications

Bacillus thuringiensis forms protein crystals which contain insectidical protein. This protein
  1. binds with epithelial cells of midgut of the insect pest ultimately killing it
  2. is activated by acidic pH of the gut of the insect pest
  3. does not kill the carrier bacterium which is itself resistant to this toxin
  4. all of these.

Answer

(D) all of these.

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