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Biotechnology and Its Applications question

2011 · Q47
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Biotechnology and Its Applications question

2011 · Q47

NEETBiologyBiotechnology and Its ApplicationsMCQ+4 / −1
Bacillus thuringiensis forms protein crystals which contain insecticidal protein. This protein :
  1. A
    is activated by acid pH of the foregut of the insect pest.
  2. B
    binds with epithelial cells of midgut of the insect pest ultimately killing it
  3. C
    is coded by several genes including the gene cry
  4. D
    does not kill the carrier bacterium which is itself resistant to this toxin
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