Bacillus thuringienesis bacteria produce a toxin that harms insects. The bacteria used to be grown in culture and sprayed on crops as an insecticide….

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Bacillus thuringienesis bacteria produce a toxin that harms insects. The bacteria used to be grown in culture and sprayed on crops as an insecticide. How has genetic engineering eliminated the need to for this?

 A. engineered motility for the bacteria so they can move to the crops themselves 

 B. put the toxin gene into the plants themselves to make their own toxin 

 C. engineered insects to be able to use Bacillus thuringienesis as a food source 

 D. put the toxin gene into humans so that they are resistant

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