Practicing Success
Which among the following statement is incorrect ? |
B. thuringiensis forms protein crystals during a particular phase of their growth. RNAi takes place in all eukaryotic organisms as a method of cellular defense. Using Agrobacterium vectors, nematode-specific genes were introduced into the host plant. Bt toxin gene has been cloned from the nematode and been expressed in plants to provide resistance to insects without the need for insecticides. |
Bt toxin gene has been cloned from the nematode and been expressed in plants to provide resistance to insects without the need for insecticides. |
The correct answer is Option (4) - Bt toxin gene has been cloned from the nematode and been expressed in plants to provide resistance to insects without the need for insecticides. Bt toxin is produced by a bacterium called Bacillus thuringiensis (Bt for short). Bt toxin gene has been cloned from the bacteria and been expressed in plants to provide resistance to insects without the need for insecticides; in effect created a bio-pesticide. Examples are Bt cotton, Bt corn, rice, tomato, potato and soyabean etc. |