Insect resistance in host crop may be due to

Read of the following statements:- (a) Insect resistance in crop plants may be due to morphological, biochemical or physiological characteristics. (b) Hairy leaves in cotton are resistant to cereal jassids. (c) Smooth leaves and nectar-less cotton varieties do not attract bollworms. (d) In maize, high asparatic acids, low nitrogen and sugar leads to resistance to stemborers. Choose correct statements :-

Read of the following statements:- (a) Insect resistance in crop plants may be due to morphological, biochemical or playsiological characteristics. (b) Hairy leaves in cotton are resistant to cereals jassids. (c) Smooth leaves and nectar-less cotton varieties do not attract bollworms. (d) In maize, high asparatic acids, low nitrogen and sugar leads to resistance to stemborers. Choose correct statements :-

Assertion : - Insect resistance in host crop plants is the contribution of only physiological characteristics. Reason : - Morphological and biochemical characteristics do not have any role in pest resistance.

Assertion : - Insect resistance in host crop plants is the contribution of only physiological characteristics. Reason : - Moorphological and biochemical characteristics donot have any role in pest resistance.

One of the main objectives of biotechnology is to minimize the use of insecticides on cultivated crops. Explain with the help of a suitable example how insect resistant crops have been developed using techniques of biotechnology.

One of the main objective of biotechnology is to minimize the use of insecticides on cultivated crops. Explain with the help of a suitable example how insect resistant crops have been developed using techniques of biotechnology.

One of the main objectives of biotechnology is to minimize the use of insecticides on cultivated crops. Explain help of a suitable example how insect resistant crops have been developed using techniques of biotechnology.