Advertisements
Advertisements
प्रश्न
With the help of a suitable example, explain how cry-proteins acts as a biological pesticide.
उत्तर
Cry IAB, Cry IAC, and Cry IIAb are the three distinct forms of cry genes. The IAB gene cry is in charge of controlling maize borer bugs. The bollworms that harm the cotton plant are controlled by the genes cry IAc and cry IIAB.
APPEARS IN
संबंधित प्रश्न
Describe any three potential applications of genetically modified plants.
Crystals of Bt toxin produced by some bacteria do not kill the bacteria themselves because −
what is golden rice.
Answer the following question.
How is a continuous culture system maintained in bioreactors and why?
Answer the following question.
List any four ways by which GMOs have been useful for enhanced crop output.
Bt brinjal is an example of transgenic crops. In this Btrefers to ______.
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.
Discuss the advantages of GMO.
Highlight any four areas where genetic modification of plants has been useful.
What is meant by the term bio-pesticide? Name and explain the mode of action of a popular bio-pesticide.
