Lesson 8.7.3
8.7.3 Risks and benefits of genetically modified organisms Quiz: Pearson Edexcel Biology, Unit 8
20 questions
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Lesson 8.7.3, Risks and benefits of genetically modified organisms: 20 multiple choice questions for the Pearson Edexcel Biology (9BI0), Unit 8: Grey Matter, written with Revision Ninja.
Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.
The 20 questions
-
Which gene is inserted into Bt crops to confer insect resistance?
- Reverse transcriptase gene
- Glyphosate resistance gene
- Bt toxin gene
- Amphotericin gene
-
What environmental risk is associated with the widespread cultivation of herbicide-tolerant GM crops?
- Development of superweeds
- Decreased soil nitrate
- Extinction of pollinators
- Reduced crop yield
-
What process transfers transgenic pollen from GM crops to wild relative species?
- Base substitution
- Gene flow
- Selective breeding
- Genetic drift
-
Which non-target organisms are most at risk from insecticidal Bt toxin in GM crops?
- Aquatic mammals
- Apex predators
- Beneficial insects
- Soil bacteria
-
What is a major economic benefit for farmers growing insect-resistant GM crops?
- Increased labour demand
- Lower crop yields
- Higher seed prices
- Reduced pesticide costs
-
Which feature of GM crops helps improve food security during periods of low rainfall?
- Pest resistance
- Drought resistance
- Antibiotic resistance
- Herbicide resistance
-
What component introduced into GM crops is most likely to cause allergic reactions?
- Synthetic carbohydrates
- Foreign lipids
- Novel proteins
- Recombinant DNA
-
What is the primary purpose of regulating genetically modified crops before commercial release?
- Maximising crop prices
- Assessing safety risks
- Eliminating wild species
- Guaranteeing high yield
-
How should the risks and benefits of GM crops be evaluated for regulatory approval?
- Unrestricted commercial use
- Seed price alone
- Case-by-case basis
- Universal blanket ban
-
What ethical concern arises from companies patenting genetically modified seeds?
- Faster seed germination
- Reduced crop yields
- Farmer dependency
- Increased biodiversity
-
Which ecological concern applies specifically to pest-resistant GM crops?
- Decreased soil salinity
- Increased water consumption
- Rapid gene mutation
- Non-target organism harm
-
Which GM crop was engineered to reduce vitamin A deficiency in developing nations?
- Bt cotton
- Flavr Savr tomato
- Roundup Ready soya
- Golden Rice
-
What is a key benefit of growing pest-resistant GM crops?
- Faster water absorption
- Increased soil erosion
- Higher seed viability
- Reduced chemical spraying
-
Why is using antibiotic resistance marker genes in GM crops considered risky?
- Reduced crop yield
- Horizontal gene transfer
- Protein denaturisation
- Increased pest activity
-
Why does public opinion vary significantly regarding genetically modified foods?
- Equal financial benefits
- Uniform scientific literacy
- Differing risk perceptions
- Identical ethical values
-
Why are potential ecological impacts of GM crops difficult to assess immediately?
- High initial cost
- Rapid mutation rates
- Long-term ecosystem effects
- Instantaneous gene transfer
-
Which toxin gene from bacteria is inserted into crops to confer insect resistance?
- Bt toxin gene
- Ti plasmid gene
- Beta-carotene gene
- DNA ligase gene
-
What is the main purpose of conducting field trials for GM crops?
- Increasing seed cost
- Preventing cross-pollination
- Testing real-world impacts
- Eliminating all weeds
-
Why can generalised claims about all GM crops being safe or dangerous be misleading?
- Fixed corporate rules
- Identical gene inserts
- Context-dependent risks
- Constant global climate
-
What does substantial equivalence testing compare between GM crops and conventional crops?
- Required soil pH
- Market selling price
- Key nutritional properties
- Total DNA sequence
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