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Cambridge IGCSE Biology practice

Paper 3 structured question: Variation

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Variation

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Paper 3Theory (Core)1 marks

Variation in organisms

Description

Variation Types

Discontinuous variation is caused only by genetic factors. Continuous variation is caused by both genetic and environmental factors.

  1. a

    State what causes discontinuous variation.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 3 structured question: Variation

Paper 3Theory (Core)2 marks

Description

Variation Types

Discontinuous variation is caused only by genetic factors. Continuous variation is caused by both genetic and environmental factors.

  1. a

    Identify the causes of continuous variation.

    Aim for approximately 2 distinct marking points.

    [2]