Question

Maximum genetic diversity of crop plants occurs where agriculture is

• A. Run on commercial lines
• B. Advanced
• C. Rainfed
• D. Primitive

Answer 1

Answer: (B)

Advanced

Advanced Agriculture is using biotechnology to obtain better methods in agricultural practices. This includes-

(i) Genetically modified organisms: Plants, bacteria, fungi or animals whose genes have been altered by manipulation are called GMO. If the gene is altered in a crop plant it is called GM crop.

(ii) Pest-resistant plant: By RNA interference technique plants can be made to resist infestation of a nematode Meloidogyne incognita. Using Agrobacterium vector nematode-specific genes are introduced into host plant and silencing of Specific mRNA of the nematode is done.

(iv) Production of interspecific hybrids by somatic hybridization.

(v) Tailor-made predators, pathogens of pests are created to control infestation by pests.