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Population genetics, Hardy-Weinberg and evolutionary change

Inheritance, variation and populations · Lesson 4 of 4

Lesson 4 of 4

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Lesson 4 of 4 · Inheritance, variation and populations

Population genetics, Hardy-Weinberg and evolutionary change

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Define the terms population, gene pool, allele frequency, genotype frequency, evolution and natural selection using correct biological terminology.
Use the Hardy-Weinberg principle to calculate allele frequencies and genotype frequencies from population data, including use of $p$, $q$, $p^2$, $2pq$ and $q^2$ where appropriate.

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Explain how selection pressures can change allele frequencies over time, including the effects of natural selection on survival, reproduction and adaptation.

Interpret data on directional, stabilising and disruptive selection, and relate patterns of selection to evolutionary change where this is included by the specification.

Explain the roles of mutation, recombination, gene flow, genetic drift and isolation in producing evolutionary change and, where specified, in the development of speciation.

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