Genetic Modification Quiz
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5 questions, one answer each
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1. Main difference between selective breeding and natural selection?
- A. Selective breeding only affects plants
- B. In selective breeding humans choose; in natural selection the environment chooses
- C. Selective breeding takes one generation
- D. Selective breeding doesn't involve reproduction
2. Which enzyme joins sticky ends together?
- A. Restriction enzyme
- B. Ligase
- C. Amylase
- D. Protease
3. Why is tissue culture useful in plant breeding?
- A. Introduces new genes
- B. Produces identical disease-free plants quickly year-round
- C. Requires no nutrient medium
- D. Only works on animals
4. What characteristic does the Bt gene give crops?
- A. Drought resistance
- B. Insect resistance
- C. Faster photosynthesis
- D. Higher sugar content
5. Best evaluation of fertiliser vs biological control?
- A. Fertiliser always better, no risks
- B. Biological control never affects other species
- C. Both have trade-offs: fertiliser boosts yield but risks eutrophication; biological control is sustainable but slower and can introduce new pests
- D. Neither affects yield