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Cambridge IGCSE Biology practice

Paper 3 structured question: Genetic modification

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Genetic modification

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Paper 3Theory (Core)3 marks

Genetic modification is used to improve organisms by adding specific genes.

Description

Examples of Genetic Modification

Examples include adding human genes to bacteria to produce human proteins, adding genes to crops for herbicide resistance, insect pest resistance, and enhanced nutritional value.

  1. a

    State one example of genetic modification involving bacteria.

    Aim for approximately 1 distinct marking point.

    [1]
  2. b

    Identify two examples of genetic modification involving crops.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Genetic modification

Paper 3Theory (Core)2 marks

Description

Genetic Modification in Crops

Genes can be added to crops to make them resistant to herbicides, resistant to insect pests, or to enhance their nutritional value.

  1. a

    State one reason why genes are added to crops for herbicide resistance.

    Aim for approximately 1 distinct marking point.

    [1]
  2. b

    Identify one benefit of adding genes to crops to enhance nutritional value.

    Aim for approximately 1 distinct marking point.

    [1]