Genetically modified weed-resistant canola plants were cultivated in Canada, making it possible for farmers to apply herbicides freely to kill the weeds but not the canola plants. What went wrong with this scenario?
a) The canola farmers applied the herbicide at such a great rate that it spread to other farms that were not growing weed-resistant canola and killed the crops on the other farms.
b) Canola plants mutated and in following generations were no longer resistant.
c) The genetic modification that made the canola plants weed-resistant caused them to become more vulnerable to some insect pests.
d) Farmers were so successful in growing canola plants that the market for canola crashed and the Canadian farmers went bankrupt.
e) The weed-resistant canola plants spread by seed to neighboring farms that weren't growing canola. The weed-resistant canola plants grew out of control, because traditional herbicides could not kill them.
Ans: e) The weed-resistant canola plants spread by seed to neighboring farms that weren't growing canola. The weed-resistant canola plants grew out of control, because traditional herbicides could not kill them.
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a. True b. False
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