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Cambridge IGCSE Biology practice

Paper 3 structured question: Chromosomes, genes and proteins

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Chromosomes, genes and proteins

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Paper 3Theory (Core)2 marks

Genetics and inheritance

Description

Genes and Alleles

Genes control inherited characteristics. Alleles are different versions of these genes that can result in different traits.

  1. a

    Identify how alleles cause variation in inherited traits.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Chromosomes, genes and proteins

Paper 3Theory (Core)1 marks

Description

Alleles

Alleles are different versions of a gene that determine variations in inherited characteristics.

  1. a

    State what an allele is.

    Aim for approximately 1 distinct marking point.

    [1]