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Cambridge IGCSE Biology practice

Paper 3 structured question: Monohybrid inheritance

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Monohybrid inheritance

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Paper 3Theory (Core)1 marks

Understanding the genetic composition of organisms is fundamental in biology.

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Genotype Definition

Genotype is the genetic composition of an organism, specifically the alleles it possesses.

  1. a

    State what is meant by the term genotype?

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 3 structured question: Monohybrid inheritance

Paper 3Theory (Core)2 marks

Description

Alleles and Genotype

Alleles are different forms of a gene that determine inherited characteristics.

  1. a

    Describe what is meant by genotype in terms of alleles?

    Aim for approximately 2 distinct marking points.

    [2]