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Employ Punnett squares in genetic crosses that yield multiple genotypes to determine and illustrate the potential genotypes.

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Cambridge IGCSE BiologyInheritanceCore content

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Employ Punnett squares in genetic crosses that yield multiple genotypes to determine and illustrate the potential genotypes

  • This point belongs to Monohybrid inheritance, especially Monohybrid inheritance outcomes.
  • You need to be able to employ Punnett squares in genetic crosses that yield multiple genotypes to determine and illustrate the potential genotypes.
  • The key ideas to know are Use.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

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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)2 marks

Description

Genetic Cross of Pea Plants

Cross between two heterozygous tall pea plants (Tt x Tt).

Parent 1 allelesParent 2 alleles
Tt
Tt
  1. a

    Identify the genotypes that can result from this cross.

    Aim for approximately 2 distinct marking points.

    [2]
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