Biology • Year 12 • Module 6 • Lesson 17
Benefits of Genetic Technologies in Agricultural, Medical and Industrial Uses
Lock in the three application domains, the language of evaluation, and the agriculture-versus-biodiversity trade-off that separates a Band 3 answer from a Band 5 answer.
1. Term–definition match
The ten definitions below are shuffled. In the right-hand column write the matching term from this list: agricultural application, medical application, industrial application, nutritional modification, biological manufacturing, biodiversity trade-off, recombinant protein, industrial enzyme, monoculture, evaluative judgement. 10 marks
| # | Definition (shuffled) | Matching term |
|---|---|---|
| 1.1 | Use of genetic technologies to influence crop or livestock performance and management. | |
| 1.2 | Use of genetic technologies to produce medicines or to support treatment and diagnosis. | |
| 1.3 | Use of biological systems or products in manufacturing, processing or large-scale production. | |
| 1.4 | Changing a food organism so that its nutritional profile (e.g. vitamin or amino-acid content) is improved. | |
| 1.5 | Using cells or organisms as factories to produce useful compounds at scale. | |
| 1.6 | A situation where a gain in one area (e.g. yield) is linked to a possible cost in genetic diversity or resilience. | |
| 1.7 | A medically useful protein (e.g. insulin) produced inside a host organism after a gene has been inserted into its DNA. | |
| 1.8 | A protein catalyst produced biologically and used in a manufacturing process (e.g. in detergents or biofuels). | |
| 1.9 | An agricultural system dominated by a single, genetically narrow crop variety planted across large areas. | |
| 1.10 | A balanced conclusion that names a benefit, names a trade-off, and qualifies it with conditional language. |
2. Sort each benefit into its application domain
For each statement below, write A (Agricultural), M (Medical) or I (Industrial). Some items name a real-world example that helps you decide. 10 marks
| # | Benefit / example | Domain (A / M / I) |
|---|---|---|
| 2.1 | Bt cotton resists the cotton bollworm and reduces insecticide spraying. | |
| 2.2 | Recombinant human insulin is produced inside Escherichia coli for diabetes treatment. | |
| 2.3 | Subtilisin protease is produced by Bacillus strains for use in laundry detergents. | |
| 2.4 | Golden Rice is engineered to produce β-carotene, a precursor of vitamin A. | |
| 2.5 | Cellulase enzymes from genetically modified fungi break down plant material in second-generation biofuel plants. | |
| 2.6 | Recombinant Factor VIII clotting protein is produced for the treatment of haemophilia A. | |
| 2.7 | Roundup Ready soybean tolerates the herbicide glyphosate during weed control. | |
| 2.8 | Chymosin (rennin) is produced by engineered Aspergillus niger for cheese manufacture, replacing calf rennet. | |
| 2.9 | Recombinant hepatitis B vaccine antigen is produced inside yeast for use in childhood immunisation. | |
| 2.10 | Genetically modified salmon (AquAdvantage) grows to market size in roughly half the usual time. |
3. True or false — with correction
Circle T or F. If the statement is false, write the corrected version. 8 marks (1 for T/F, 1 for the correction where needed)
3.1 "Genetic technologies are beneficial because they help people" is a strong Band 5 evaluative statement. T / F
3.2 Higher agricultural productivity automatically means biodiversity has improved. T / F
3.3 Production of useful proteins such as insulin is a medical application of genetic technologies. T / F
3.4 Biological manufacturing using engineered host cells is an industrial application. T / F
4. Function recall
Answer each in 1–2 sentences using precise terms from the lesson. 10 marks (2 each)
4.1 What is the function of nutritional modification in agricultural genetic technologies? Give one named example.
4.2 What is the function of a host cell (e.g. E. coli, yeast) in the medical production of a recombinant protein?
4.3 What is the function of industrial enzymes produced through genetic technologies, compared with chemical catalysts?
4.4 What is the function of biodiversity in an agricultural system, and why does narrowing it reduce resilience?
4.5 What is the function of a comparison point (e.g. "compared with conventional breeding") in an HSC evaluation?
5. Build a concept map
Draw labelled arrows between the six terms below to show how they connect. Each arrow must carry a linking phrase (e.g. "delivers benefit in", "is traded off against", "is produced by"). Aim for at least 6 labelled arrows. 6 marks
Supplied terms: genetic technologies · agricultural application · medical application · industrial application · biodiversity · evaluative judgement.
Q1 — Term–definition matches
1.1 agricultural application • 1.2 medical application • 1.3 industrial application • 1.4 nutritional modification • 1.5 biological manufacturing • 1.6 biodiversity trade-off • 1.7 recombinant protein • 1.8 industrial enzyme • 1.9 monoculture • 1.10 evaluative judgement.
Marking: 1 mark each (max 10). No half marks; exact term required.
Q2 — Domain classification
2.1 A (pest resistance, agricultural). 2.2 M (recombinant insulin, medical). 2.3 I (industrial enzyme in detergent). 2.4 A (Golden Rice, nutritional modification — agricultural). 2.5 I (cellulase for biofuel manufacturing). 2.6 M (recombinant Factor VIII, medical). 2.7 A (herbicide tolerance, agricultural). 2.8 I (chymosin in cheese manufacture — industrial production). 2.9 M (recombinant vaccine antigen, medical). 2.10 A (AquAdvantage salmon, agricultural — aquaculture).
Marking: 1 mark each (max 10). Accept "agriculture / medicine / industry" written in full.
Q3 — True / false with correction
3.1 False. Correction: "Genetic technologies help people" is too generic to count as evaluation. A strong response must name the domain (agriculture / medicine / industry), name the benefit, name a trade-off (especially biodiversity for agriculture), and frame the conclusion with conditional language.
3.2 False. Correction: productivity and biodiversity are different ideas. Higher productivity can be achieved by planting a single high-yielding variety across a huge area (monoculture), which actually reduces genetic diversity and resilience.
3.3 True.
3.4 True.
Q4.1 — Function of nutritional modification
Nutritional modification changes a food organism so that its nutritional profile is improved (e.g. higher vitamin, mineral or amino-acid content), supporting food quality as well as quantity. Example: Golden Rice is engineered to produce β-carotene (provitamin A) to help address vitamin A deficiency.
Q4.2 — Function of a host cell
The host cell acts as a controlled biological factory: once the human gene is inserted, the host cell transcribes and translates it, producing the recombinant protein consistently and at scale. This is what makes large-scale supply of medicines such as recombinant insulin possible.
Q4.3 — Function of industrial enzymes
Industrial enzymes catalyse specific reactions (e.g. protein breakdown in detergents, cellulose breakdown for biofuels). Compared with chemical catalysts they work under milder conditions (lower temperature, neutral pH), are highly specific, and reduce energy use and waste — making manufacturing more efficient and lower-impact.
Q4.4 — Function of biodiversity
Biodiversity (genetic, species and ecosystem diversity) underpins resilience: when conditions change — a new pest, a new disease, drought — varied populations are more likely to contain individuals that can survive. If agricultural biotechnology narrows diversity to a few high-performing genotypes, the system gains productivity now but loses resilience to future change.
Q4.5 — Function of a comparison point
A benefit only counts as a benefit compared to something. Naming the comparison (e.g. "compared with conventional plant breeding", "compared with chemical synthesis of insulin from animal pancreases") turns a vague claim into a defensible evaluative statement.
Q5 — Sample concept map
A correct map should include arrows such as:
- genetic technologies — deliver benefits in → agricultural application
- genetic technologies — deliver benefits in → medical application
- genetic technologies — deliver benefits in → industrial application
- agricultural application — can reduce → biodiversity
- biodiversity — must be weighed in → evaluative judgement
- medical application and industrial application — each contribute domain-specific evidence to → evaluative judgement
Accept any biologically valid linking phrases. Award full marks for at least 6 correctly labelled arrows that respect causal direction.