Question

Name the organisms that produce Cry proteins.

Answer 1

Ans:) Bacteria named BACILLUS THURINGIENSIS produces Cry proteins.

Answer 2

Answer:

Cry proteins are encoded by cry genes. These proteins are toxins, which are produced by Bacillus thuringiensis bacteria. This bacterium contains these proteins in their inactive from. When the inactive toxin protein is ingested by the insect, it gets activated by the alkaline pH of the gut. This results in the lysis of epithelial cell and eventually the death of the insect. Therefore, man has exploited this protein to develop certain transgenic crops with insect resistance such as Bt cotton, Bt corn, etc.

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