How do genetic modification and emerging food technologies affect food and its production?
Evaluate genetically modified foods and emerging food technologies, including their potential benefits, risks and ethical issues
Genetic modification and emerging technologies such as cultured and plant-based proteins can improve yield, nutrition and sustainability, but raise safety, environmental, economic and ethical questions that must be evaluated.
Reviewed by: AI editorial process; not yet individually human-reviewed
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What this dot point is asking
You need to explain what genetic modification and emerging food technologies are, and evaluate them by weighing their benefits against their risks and ethical issues.
What genetic modification is
Genetic modification (GM) changes the DNA of a plant or animal, often by inserting a gene, to give a useful trait. Common examples include crops engineered for pest resistance, herbicide tolerance, higher yield or improved nutrition, such as crops biofortified with extra vitamins.
GM is one example of how technology aims to increase the quantity, quality or resilience of the food supply, especially as the world population grows and the climate changes.
Emerging food technologies
Beyond GM, several newer technologies are developing:
- Biofortification: breeding or engineering staple crops to contain more micronutrients, helping address deficiencies.
- Cultured (cell-based) meat: growing animal protein from cells without raising and slaughtering animals.
- Alternative and plant-based proteins: new products designed to replace animal foods, sometimes using novel ingredients or precision fermentation.
- Precision agriculture: using sensors and data to use water, fertiliser and pesticides more efficiently.
These aim to improve sustainability, nutrition or efficiency, but most are still developing and their long-term effects are not fully known.
Evaluating benefits and risks
- Potential benefits
- Higher yields and pest resistance can increase the food supply and reduce some chemical use. Biofortification can improve nutrition where deficiencies are common. Cultured meat and plant proteins may lower the environmental impact of animal farming. These can support food security and sustainability.
- Potential risks and concerns
- Questions include long-term safety, though approved GM foods are generally assessed as safe to eat; environmental effects such as impacts on biodiversity or the spread of modified genes; economic concerns about a few large companies controlling seeds and patents; and consumer choice, including whether GM foods should be labelled.
- Ethical issues
- People hold strong and differing views on altering nature, on animal welfare, on fairness to farmers in poorer countries, and on whether such technologies should be used at all. A good evaluation presents more than one viewpoint.
Why this matters
These technologies sit at the heart of debates about feeding a growing population sustainably. Evaluating them means weighing scientific evidence against social, economic and ethical concerns, exactly the kind of balanced judgement the examination rewards.
In short, genetic modification and emerging technologies can raise yield, nutrition and sustainability, but evaluating them requires weighing those benefits against safety, environmental, economic and ethical concerns from more than one viewpoint.
Exam-style practice questions
Practice questions written in the style of SACE Board exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
2019 SACE Stage 220 marksOption topic 1 (Global nutrition and ecological sustainability): Rice is the staple food of more than half the world's population. As part of a wider discussion, discuss how genetically modified organisms (GMOs) could benefit the health of individuals.Show worked answer →
In the full question this is one bullet of an extended response, so develop it thoroughly with real examples.
Enhanced nutrient content: GM crops can be engineered to contain more of a needed nutrient. The classic example is Golden Rice, modified to produce beta-carotene (a vitamin A precursor). In communities that rely on rice and suffer vitamin A deficiency, this can reduce blindness and immune problems (about 5 marks).
Higher, more reliable yields and pest/disease resistance: GM crops that resist pests, disease or drought produce more food more reliably. This improves food security and reduces undernutrition, so individuals get enough energy and nutrients (about 5 marks).
Reduced harmful inputs and contaminants: Pest-resistant GM crops can need less chemical pesticide, lowering individuals' exposure to pesticide residues, and some GM crops are engineered to reduce natural toxins or allergens (about 5 marks).
A high-scoring response also briefly acknowledges that these health benefits must be weighed against safety, ethical and environmental concerns. Remaining marks reward structure and balanced evaluation.