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Define heterozygous as having two different alleles for a specific gene.

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  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE BiologyInheritanceCore content

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Define heterozygous as having two different alleles for a specific gene

  • This point belongs to Monohybrid inheritance, especially Monohybrid inheritance outcomes.
  • You need to be able to define heterozygous as having two different alleles for a specific gene.
  • 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.

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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 3 structured question: Monohybrid inheritance

Paper 3Theory (Core)1 marks

Description

Definition of heterozygous

An organism inherits two alleles for each gene, one from each parent. Sometimes these alleles are different.

  1. a

    State what is meant by heterozygous?

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    [1]
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