Inheritance, Variation and Evolution¶
This topic area follows biological information across generations. It links genes, inheritance patterns, variation and evolutionary change into one continuous story.
Core Role¶
- Explain how inherited information is stored and passed on.
- Connect variation to natural selection and long-term change.
- Show how human choices such as selective breeding and genetic engineering act on inherited traits.
Topic Pages¶
- Reproduction: Reproduction links cell biology to inheritance. The central question is how organisms make new individuals while passing on genetic information accurately enough for continuity and differently enough for variation.
- Variation and Evolution: Variation and evolution explain why individuals differ and how populations change over time. Human intervention through breeding and genetic engineering sits alongside natural selection in this topic.
- The Development of Understanding of Genetics and Evolution: This topic is about how scientific ideas changed over time. It shows that theories of evolution and inheritance were built gradually as new evidence and better technology became available.
- Classification of Living Organisms: Classification helps biologists organise the diversity of life into groups that reflect evolutionary relationships. The system is not fixed — it changes as new evidence emerges, particularly from genetics.