Which of the following is NOT a type of resistance commonly engineered in crops?

• A. Pesticide resistance
• B. Weather resistance
• C. Herbicide resistance
• D. Nutrient resistance

Answer: (D)

Nutrient resistance is not a type of resistance commonly engineered in crops. While the other options represent specific types of resistance that are frequently targeted through genetic engineering practices, such as pesticide, weather, and herbicide resistance, nutrient resistance does not have a clear definition or established practice in the context of crop engineering.

Pesticide resistance refers to modifications that enable crops to withstand or repel pesticide treatments, thereby increasing their chances of survival until harvest. Herbicide resistance allows crops to thrive even in the presence of herbicides that would typically kill unwanted weeds. Weather resistance, while a broader category, can include traits that help plants withstand environmental stressors like drought or extreme temperatures. None of these established engineering targets directly align with the concept of nutrient resistance, which lacks specificity in terms of what traits would be developed or what desired outcomes would result from such engineering.