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4.3 Selective breeding and genetic modification

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Question 6

A grower trials four fertiliser programmes on equal areas planted with field beans.

ProgrammeMass of beans harvested / kgFertiliser cost / £Nitrate lost from the soil / g
A460186
B5203015
C5556410
D5909524

The grower requires a harvest of at least 500 kg and an income of at least £320 after the fertiliser cost is subtracted. The beans sell for £0.70 per kg.

Which programme has the lowest nitrate loss while meeting both requirements?

[1]
A

Programme B

B

Programme D

C

Programme A

D

Programme C

Markscheme

4.3 Selective breeding and genetic modification Questions

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

100 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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