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Genetics, Evolution and Ecosystems
Quick questions on Populations and evolution: natural selection, Hardy-Weinberg and speciation - CCEA 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
In a population, the frequency of the recessive phenotype () is 0.16. Calculate the frequency of the recessive allele q. [1 mark]
What is q2?Show answer
Explain how a geographical barrier can lead to speciation. [3 marks]
What is q3?Show answer
In a population, the dominant allele frequency p is 0.8. Calculate the percentage expected to be homozygous dominant and the percentage that are carriers. [2 marks]
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