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प्रश्न
How has man exploited cry proteins to his benefit?
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उत्तर
The genes cry I Ac and cry II Ab encode proteins that control cottonbollworms, while cry I Ab controls corn borer. Plants having these proteins have natural insect resistance, making them a biopesticide.
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संबंधित प्रश्न
How did the process of RNA interference help to control the nematode from infecting the roots of tobacco plants?
What is a GMO?
How has the use of Agrobacterium as vectors helped in controlling Meloidogyne incognita infestation in tobacco plants? Explain in the correct sequence.
Which one of the followmg bacterium is used for the production of transgenic plants?
The trigger for activation of toxin of bacillus thuringlensis is ______.
Assertion (A): In Bt cotton, B. thuringiensis produces a toxic insecticidal crystalline protein which destroys bollworms.
Reason (R): B. thuringiensis produces this toxic protein in an inactive form, but when an insect ingests this inactive protein, it is converted into active form of toxin due to the alkaline pH of gut which solubilises the crystals, which is responsible for the death of bollworm.
Silencing of a gene could be achieved through the use of ______.
Highlight any four areas where genetic modification of plants has been useful.
What are cry-proteins?
With the help of a suitable example, explain how cry-proteins acts as a biological pesticide.
