Question

Suppose that you are evaluating a genetically modified (GM) crop plant. The plant has been modified to be resistant to a herbicide, which allows farmers to kill weeds in the field with the herbicide without harming the crop. Part A: Suppose that each GM crop plant produces 100 seeds. If these seeds are planted without water or fertilizer, but also without competitors, 1 out of 100 survive to flower. If, however, they are in competition with other wild plants, only 1 in 5000 survive to flower. What is the risk that this GM crop plant will "escape" and invade wild areas (low, medium, or high)? Explain why you think this. Part B: There is an important weed species in the area that can reduce the productivity of farm fields. It is a close relative of the crop species, and can hybridize with it, producing fertile offspring. What is the risk that the weed species will become resistant to the herbicide (low, medium, or high)? Explain your answer.

Answer 1