Prior to recombinant DNA technologies, the major difficulty with using the herbicide glyphosate was that it
A) could only be harvested in small quantities.
B) would often kill crops as well as weeds.
C) made the plants sensitive to salt.
D) reduced the vitamin A content of the plants.
E) was rather ineffective at killing weeds.

Question

Quizplus · Accepted Answer

The major difficulty with using the herbicide glyphosate before recombinant DNA technologies was that it would often kill crops as well as weeds. This limited its use in agriculture because it was not selective enough in targeting only the unwanted weeds. The development of genetically modified crops that were resistant to glyphosate allowed for more targeted and effective weed control.

Prior to Recombinant DNA Technologies, the Major Difficulty with Using