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Question
Two neighbour farmers, Jack and Jill, have problems with insects eating their crops. For many years they controlled the pests by using a natural toxin, Bt, produced by bacteria Bacillus thuringiensis, They sprayed it only on the most affected plants and only over a short time. One year Jack decided to try a GM crop that produces large amounts of Bt toxin inside its leaves all the time. After a few years, Jack notices that the insects are no longer killed by his GM plants. Which of the following is likely NOT TRUE?A) The high, long-term, doses of Bt present in GM crops caused selection favouring pests that are resistant to Bt.
B) Farmer Jack can return to his previous natural method of protecting crops.
C) Farmer Jack will have no choice but to buy the next generation of GM crops to which the pests do not have resistance yet
D) By rendering the natural pest control alternative ineffective, the GM company became "the only game in town" and can raise prices on its products.
E) Insects from Jack's field spread to Jill 's farm as well. With her natural Bt spray now ineffective, Jill has no choice but to start buying the products of the GM company too.
Answer
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