AQA GCSE Biology 5 Views 1 Answers
In what ways could genetically modified crops, such as golden rice, improve food supply and nutritional value?
In what ways could genetically modified crops, such as golden rice, improve food supply and nutritional value?
Answer
Genetically modified crops, such as Golden Rice, have the potential to significantly improve food supply and nutritional value in several ways:
1. Increased Food Production
- Higher Yields: Genetically modified (GM) crops are designed to be more resilient to pests, diseases, and environmental stresses, which can lead to increased yields. For instance, GM cotton has been shown to improve calorie consumption and dietary quality among farmers due to higher income from increased production. This increase in yield helps stabilize food supplies in regions facing food insecurity.
2. Nutritional Enhancement
- Biofortification: Golden Rice is specifically engineered to produce beta-carotene, a precursor to vitamin A. This is crucial in areas where rice is a staple food but lacks essential nutrients. Consuming just 40 grams of Golden Rice daily can provide a significant portion of the recommended daily intake of vitamin A. This biofortification addresses vitamin A deficiency, which is prevalent in many developing countries and can lead to severe health issues, particularly in children and pregnant women.
3. Addressing Nutritional Deficiencies
- Complementing Diets: Golden Rice serves as a complementary food source that can help alleviate vitamin A deficiency when incorporated into the diets of populations that primarily consume rice. It is particularly beneficial in regions where access to diverse foods rich in vitamin A is limited.
4. Economic Benefits for Farmers
- Improved Income: The adoption of GM crops can enhance farmers’ economic situations by increasing their productivity and income levels. This economic improvement can lead to better access to nutritious foods for their families and communities. As farmers earn more, they may invest in healthier food options and education about nutrition.
5. Environmental Sustainability
- Reduced Need for Pesticides: Many GM crops are engineered for pest resistance (e.g., Bt cotton), which reduces the reliance on chemical pesticides. This not only lowers production costs for farmers but also lessens environmental impact, contributing to sustainable agricultural practices.
6. Adaptation to Climate Change
- Resilience to Environmental Changes: GM crops can be developed to withstand extreme weather conditions, such as drought or flooding, which are becoming more common due to climate change. This resilience is critical for maintaining food supplies in vulnerable regions
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