Biotechnology+and+Agriculture

Topic Three
 * During the early 1990s almost 86% of all genetically engineered crops in Canada were altered to be tolerant of herbicides.
 * Herbicides are chemicals used to kill unwanted plants or weeds that grow with food crops, it can also kill crop plants as well.
 * farmers with small herds of dairy cattle are concerned that using the hormone might increase the chances of some types of infection in their cows.