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EnglandBiologyQuick questions
3.7 Genetics, populations, evolution and ecosystems
Quick questions on Evolution and speciation: natural selection, genetic drift, allopatric and sympatric speciation - AQA A-Level Biology
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
Distinguish between directional and stabilising selection, giving one named example of each. [4 marks]
What is q2?Show answer
Explain why genetic drift has a greater effect on small populations than large ones, and define the founder effect. [3 marks]
What is q3?Show answer
Compare allopatric and sympatric speciation. [3 marks]
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