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6.2 Variation and evolution

6.2 Variation and evolution

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Question 6
F

A GM variety of maize has been given a gene from a bacterium. This gene makes the maize produce a substance that kills insect pests. A farmer grew the GM maize and a normal variety of maize in the same field for four years.

Figure shows the mean yield of each variety in each year.

Figure: The mean yield of a GM variety of maize and of a normal variety of maize grown in the same field for four years

image

a.

Calculate the mean yield of the GM maize over the four years.

[2]
b.

Give one conclusion about the effect of the inserted gene on the yield of maize. Use Figure in your answer.

[1]
c.

Suggest one reason, other than cost, why some people are concerned about growing this GM maize.

[1]
Markscheme

6.2 Variation and evolution Questions

  1. GCSE
  2. /Biology
  3. /6.2 Variation and evolution

44 exam-style questions on AQA GCSE Biology 6.2 Variation and evolution, covering 6.2.1 Variation, 6.2.2 Evolution, 6.2.3 Selective breeding, 6.2.4 Genetic engineering, and 6.2.5 Cloning. Each one has a worked solution and a mark scheme showing where the marks go.

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