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4.3 Selective breeding and genetic modification

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Question 18
F

Scientists compare insect-resistant GM maize with non-GM maize in matched plots.

Table

CropYield without insect pests / kgYield with insect pests / kg
GM maize800760
Non-GM maize800600

How many kilograms of yield loss are prevented by the modification when insect pests are present?

[1]
A

240240240

B

404040

C

200200200

D

160160160

Markscheme

4.3 Selective breeding and genetic modification Questions

  1. GCSE
  2. /Biology
  3. /4.3 Selective breeding and genetic modification

44 exam-style questions on Edexcel GCSE Biology 4.3 Selective breeding and genetic modification, covering 4.3.1 Selective breeding and its impact, 4.3.2 Tissue culture, 4.3.3 Genetic engineering overview, 4.3.4 Main stages of genetic engineering, 4.3.5 Advantages and disadvantages of GM organisms, 4.3.6 Agricultural solutions for a growing population, and 4.3.7 Evaluating genetic engineering and breeding. Each one has a worked solution and a mark scheme showing where the marks go.

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