12th Class Biology Sample Paper Biology - Sample Paper-1

  • question_answer
    How is incorporation of cry genes in several crops beneficial?

    Answer:

    Cry genes code for Bt toxins. These fir toxin genes were isolated from the bacterium Bacillus thuringiensis and incorporated into several crops like cotton. The choice of the gene depends on the crop and the targeted pest, as most Bt toxins are insect group specific. Gene cry IAc and cry llAb control cotton bollworms white cry IAb controls corn borer.


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