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CAIE IGCSE Biology 21.3.4 Advantages and Disadvantages Questions

Practise evaluating genetically modified soya, maize and rice through yield, pesticide use, nutrition, cost and ecological risk.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • explain benefits such as higher yield, improved nutrition and reduced pesticide use
  • explain risks from gene transfer, resistant weeds, biodiversity loss, seed cost or unknown effects
  • balance advantages and disadvantages in the named crop context rather than listing generic claims

CAIE IGCSE Biology 21.3.4 Advantages and Disadvantages Questions question 1

[Maximum number: 4]

Bacteria are useful in biotechnology and genetic engineering.
Fig. 6.1 shows a photomicrograph of a bacterium.

Fig. 6.1

Fig. 6.1

Crop plants can also be genetically modified.

Describe the advantages of genetically modifying crops.

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