Question

Scientists can genetically alter corn so that it makes a protein that will harm a certain caterpillar that feeds on it. Which of the following is an advantage of producing this type of corn?

a. It reduces the need for chemical pesticides.
b. It increases the caterpillar population.
c. It harms other beneficial insects.
d. It has no environmental benefits.

Answer 1

The advantage of genetically modified corn such as Bt corn is that it leads to reduced use of chemical pesticides, which is beneficial for the environment and non-target species.

Step-by-step explanation:

a. It reduces the need for chemical pesticides. The creation of genetically modified crops like Bt corn allows for the expression of Bacillus thuringiensis (Bt) proteins that are toxic to specific pests but harmless to others, including humans. This genetic engineering feat leads to a significant reduction in the application of chemical pesticides, an approach with multiple environmental benefits. By reducing chemical pesticide use, farmers are able to diminish the risk of contaminating groundwater and affecting non-target species, such as beneficial insects or even humans.

Moreover, the development of such biotechnological crops helps to manage pests more efficiently and effectively. Therefore, it maintains a balance in the ecosystem and helps to reduce the potential health and environmental hazards associated with broad-spectrum chemical pesticides.