How do viruses benefit agriculture?

How do viruses benefit agriculture?

• A. By directly infecting pests
• B. By transferring beneficial genes to plants
• C. By improving soil quality
• D. By acting as fertilizers

Answer: (B)

Viruses can play a significant role in agriculture, particularly through the process of transferring beneficial genes to plants, which is a key component of biotechnology. In this context, scientists can utilize certain viruses that possess natural abilities to deliver genetic material into the plant cells. This gene transfer can introduce traits such as pest resistance, enhanced growth characteristics, or increased nutritional value, thereby improving crop yields and sustainability.

For instance, certain viral vectors are engineered to carry desirable genes into plants, which can help them withstand diseases or pests that would otherwise compromise their growth and productivity. This method harnesses the natural infective properties of viruses, enabling precise modifications without the direct use of chemical pesticides or fertilizers.

This biotechnological approach contrasts with the other options, which do not accurately represent how viruses contribute positively to agriculture. While viruses might infect pests, this activity is not a direct benefit to crops or agricultural practices. The improvement of soil quality and acting as fertilizers typically involves biological processes unrelated to viral activity. Thus, focusing on the gene transfer capabilities highlights the innovative ways in which viruses can be utilized to support agricultural advancements.