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Cambridge IGCSE Biology practice

Which of the following is an example of a sex-linked trait?

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Show answerMonohybrid inheritance revisionRevise the key idea

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MCQ

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cambridge_mcq

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Topic

Monohybrid inheritance

Exam-style question

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Which of the following is an example of a sex-linked trait?.

  1. A.Eye colour
  2. B.Blood type
  3. C.Haemophilia
  4. D.Hair texture

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Paper 4 structured question: Monohybrid inheritance

Paper 4Theory (Extended)3 marks

Description

Sex-linked traits

A sex-linked trait is one where the gene responsible is located on a sex chromosome. Because males and females have different sex chromosomes, these traits often appear more frequently in one sex.

  1. a

    State what is meant by a sex-linked trait?

    Aim for approximately 1 distinct marking point.

    [1]
  2. b

    Describe why sex-linked traits are often more common in males than females.

    Aim for approximately 2 distinct marking points.

    [2]