AQA A-Level Biology (7402) · AQA 7402
3.4 Genetics, Biodiversity and Classification
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Practice questions on Genetics, Biodiversity and Classification
- A mutation occurs in a gene, changing one DNA base. Explain how this mutation could result… (5 marks, Explain)
- Explain why a community with many different species of plants and animals has greater biod… (5 marks, Explain)
- Explain why it is important to maintain high biodiversity within an ecosystem. (5 marks, Explain)
- Explain why scientists compare the base sequences of DNA from different species when class… (5 marks, Explain)
- Explain how the conservation of woodland habitats can help to maintain biodiversity within… (5 marks, Explain)
- Explain why a species with a high level of genetic diversity is more likely to survive if … (5 marks, Explain)
- A student investigates the biodiversity of two woodland areas. One woodland has been manag… (5 marks, Describe)
- Explain why maintaining high biodiversity within a community is important for the long-ter… (5 marks, Explain)
- Evaluate the claim that modern farming methods reduce biodiversity within a community. (5 marks, Evaluate)
- Describe how human activities can reduce biodiversity within a community. In your answer, … (5 marks, Describe)
- Explain what is meant by the term 'species' and describe how the five-kingdom classificati… (5 marks, Explain and Describe)
- Explain why the classification of organisms sometimes changes, and describe two types of e… (5 marks, Explain)
- Describe how organisms are classified using the Linnaean taxonomic hierarchy, and explain … (5 marks, Describe and Explain)
- Explain why two organisms that can successfully interbreed and produce fertile offspring a… (5 marks, Explain)
- Explain how scientists use the binomial naming system to classify organisms, and why it is… (5 marks, Explain)
- Explain why selective breeding of crop plants can reduce genetic diversity and suggest why… (5 marks, Explain / Suggest)
- Describe how a genetic bottleneck can reduce the genetic diversity of a population. Includ… (5 marks, Describe)
- Explain why a population of organisms that reproduces only by mitosis is less likely to su… (5 marks, Explain)
- Explain how natural selection can lead to a population of organisms becoming better adapte… (5 marks, Explain)
- Explain why sexual reproduction, which relies on meiosis, produces offspring with more gen… (5 marks, Explain)
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