Bt-corn has been genetically engineered to express an insect-killing gene from the bacteria Bacillus thuringiensis.How does this genetically engineered corn benefit the environment?
A) It provides a food source for important pollinator insects.
B) It decreases the amount of land necessary to grow the world's corn requirements.
C) It increases the amount of insecticide that needs to be used on the crops.
D) It decreases the amount of insecticide that needs to be used on the crops.

Question

Quizplus · Accepted Answer

The genetically engineered Bt-corn decreases the amount of insecticide that needs to be used on the crops. This is because the corn has been engineered to express a gene that is toxic to certain pests, reducing the need for external insecticides to be applied to the crop. This decrease in insecticide use is beneficial for the environment, as it reduces the amount of harmful chemicals that are released into the ecosystem.

Bt-Corn Has Been Genetically Engineered to Express an Insect-Killing Gene