Cultivation of Bt cotton has been much in the news. The prefix Bt means

Step-by-step solution

Cotton and other monocultured crops require an intensive use of pesticides as various types of pests attack these crops causing extensive damage. So far, the only successful approach to engineering crops for insect tolerence has been the addition of Bt toxin, a family of toxins originally derived from soil bacteria. The Bt toxin contained by the Bt crops is no different from other chemical pesticides, but causes much less damage to the environment. These toxins are effective against a variety of economically import