Biology Regents Practice Exam

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What method is being used to develop plants that grow in phosphorus-poor soil?

Paper chromatography
Natural selection
Direct harvesting
Genetic engineering

The correct answer is: Genetic engineering

The correct method for developing plants that can thrive in phosphorus-poor soil is genetic engineering. This technique involves directly altering the plant's genetic material to enhance desirable traits, such as increased nutrient uptake or tolerance to low phosphorus conditions. By incorporating specific genes that enable improved absorption and utilization of phosphorus, scientists can create genetically modified plants that can grow effectively even in nutrient-deficient soils. This approach allows for targeted modifications that can lead to faster results compared to traditional breeding methods, which may take longer and involve numerous generations of selection. Genetic engineering can provide immediate enhancements, making it a powerful tool in improving crop resilience and agricultural sustainability in challenging environments.