What are Cry proteins? Name an organism | Class 12 Biology Chapter Biotechnology and its Application, Biotechnology and its Application NCERT Solutions

Question: What are Cry proteins? Name an organism that produces it. How has man exploited this protein to his benefit?

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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Comments

Ramdayal
2019-02-26 17:40:46

Hindi me and dijeye sir

Sukant gouda
2018-08-01 23:19:41

Best of luck. Bro

Rishikesh
2017-12-12 22:55:10

Nice

Vinod Bharadwaj
2015-04-05 12:20:09

please add that man has been using this protein as bio -pesticide also

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Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 4: What are Cry proteins? Name an organism that produces it. How has man exploited this protein to his ....

What are Cry proteins? Name an organism | Class 12 Biology Chapter Biotechnology and its Application, Biotechnology and its Application NCERT Solutions

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