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Inheritance, variation and evolution

Part of Biology (Single Science)

  • Inheritance, variation and evolution

    • Reproduction, the genome and gene expression - AQA

      Reproduction occurs in all organisms. DNA is important, as it allows new proteins to be synthesised. Mutations in the DNA can have serious implications.

    • Genetic inheritance - AQA

      Our genes are inherited from our parents, and the different combinations of these genes make us unique. Genetic inheritance controls the characteristics of all living things.

    • Variation - AQA

      Variation in species can be generated by genetics. Mutations arise spontaneously and can sometimes lead to genetic disorders or death. Genes can be inserted into a genome through genetic engineering.

    • Evolution - AQA

      Evolution is the change of inherited characteristics within a population over time through natural selection, which may result in the formation of a new species.

    • Classification of living organisms - AQA

      Living things are classified using a system developed by Carl Linnaeus. Organisms are commonly named by the binomial system of genus and species.

    • Sample exam questions - inheritance, variation and evolution - AQA

      Understanding how to approach exam questions helps to boost exam performance. Question types will include multiple choice, structured, mathematical and practical questions.

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