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Describe red-green color blindness as an example of a sex-linked trait.

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  • Practise with linked questions.
Cambridge IGCSE BiologyInheritanceSupplement content

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Quick explanation

Describe red-green color blindness as an example of a sex-linked trait

  • This point belongs to Monohybrid inheritance, especially Monohybrid inheritance outcomes.
  • You need to be able to describe red-green color blindness as an example of a sex-linked trait.
  • The key ideas to know are Describe.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Describe

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This objective helps connect Monohybrid inheritance outcomes to exam-style questions, flashcards, and revision notes for Monohybrid inheritance.

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Paper 4 structured question: Monohybrid inheritance

Paper 4Theory (Extended)2 marks

Description

Red-Green Colour Blindness

Red-green colour blindness is more common in males than females because it is a sex-linked trait caused by a gene on the X chromosome.

  1. a

    Describe why red-green colour blindness is more common in males than females.

    Aim for approximately 2 distinct marking points.

    [2]
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