Multiple choice

Bacillus thuringiensis (Bt) strains have been used for designing novel

  1. bio-insecticidal plants.

  2. bio-mineralization processes.

  3. bio-fertilizers.

  4. bio-metallurgical techniques.
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A Correct answer
Explanation

  Bacillus thuringiensis (Bt) strains have been used for designing novel bio-insecticidal plants.During sporulation, many Bt strains produce crystal proteins (proteinaceous inclusions), called δ-endotoxins, that have insecticidal action. This has led to their use as insecticides, and more recently to genetically modified crops using Bt genes. Many crystal-producing Bt strains, though, do not have insecticidal properties.

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