Which statement about the toxin from B.thuringiensis is false?
A) It was applied as a pesticide long before it was added to plants via recombinant DNA.
B) Many different transgenic crops are grown with the toxin.
C) The use of this toxin has greatly reduced the need for pesticides.
D) The toxin acts primarily against vertebrate pests.
E) The toxin must be ingested by a pest to cause harm.

Question

Quizplus · Accepted Answer

The toxin from B.thuringiensis acts against insect pests, not vertebrate pests. All the other statements are true: the toxin was applied as a pesticide before genetic engineering, many crops have been genetically modified to produce the toxin, the use of this toxin has reduced the need for other pesticides, and the toxin must be ingested by a pest to cause harm.

Which Statement About the Toxin from B