Name the insect that attacks cotton crops and causes lot of damage to the crop. How has Bt cotton plants overcome this problem and saved the crop? Explain.

Name the nematode that infests and damages tobacco roots. How are transgenic tobacco plants produced to solve this problem ?

Why some cotton plants are named at Bt cotton?

Write the name of any one disease in crops caused by fungi.

Name the insect pest that is killed by the products of cryIAc. Explain how the gene makes the plant resistance to insect pest.

Explain how it has been used to develop G.M. Crops.

What types of soil and climate is suitable for cultivating cotton crop?

"Species Bt Toxin gene is incorporated into cotton plant so as to control infestation of Bollworm". Mention the organism from which the gene was isolated and explain its mode of action.

Assertion: Chemical fertilizers and pesticides are not only expensive but also pose environmental hazards Reason: Any mismanagement during application of chemical fertilizers and pesticides is likely to cause damage only to crops but also to man. If both Assertion and Reason are true and Reason is a correct explanation of Assertions. If both Assertion and Reason are true but Reason is not a correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false.