Bacillus thuriginensis is a good
Biofertilizer
Biopesticide
Biofuel
Single cell protein
Crystals of $Bt$ toxin produced by some bacteria do not kill the bacteria themselves because
Give information about pest resistant plants. Explain $\rm {RNA}$ interference.
Why is $B t$ toxin not toxic to human beings?
Tobacco plants resistant to a nematode have been developed by the introduction of $DNA$ that produces (in the host cells)
Gene expression can be controlled with the help of $\rm {RNA}$ . Explain the method with an example.