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Inheritance and genetics

Part of Biology

  • Inheritance and genetics

    • DNA

      DNA is the genetic code which makes up genes, which are responsible for giving an organism a specific characteristic.

    • Causes of variation

      Some variation is passed on via genes and some variation is the result of differences in the surroundings, or what an individual does.

    • Types of variation

      Collecting data on the differences between members of a species can give two different types of results: continuous and discontinuous.

    • Inheritance

      Characteristics like eye colour and genetic diseases are inherited.

    • Adaptations and evolution

      Evolution explains how better adapted organisms have an advantage.

    • What is natural selection?

      Natural selection is known as ‘the survival of the fittest’. The best adapted organisms are able to survive.

    • Natural selection leads to evolution

      Evolution is the process by which small changes in organisms occur over long periods of time and new species are formed.

    • Species and selective breeding

      Selective breeding is when organisms are deliberately bred so their offspring have the desirable characteristics.

    • Genetic conditions

      Genetic conditions are passed from parents to their children. Learn about conditions that are inherited, such as sickle cell disorder and cystic fibrosis.

    • Darwin v Doudna: Who was the greatest scientist?

      Compare the work of two great scientists, Darwin and Doudna.

    • Should extinct species be brought back to life?

      Discussing whether extinct species should ever be brought back to like. Can you think like a scientist?

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