Describe the principles of selective breeding (artificial selection)
Describe the principles of selective breeding (artificial selection)
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Describe the principles of selective breeding (artificial selection)
Use the Hardy–Weinberg principle to calculate allele and genotype frequencies in populations and state the conditions when this principle can be applied (the two equations for the Hardy–Weinberg principle will be provided, as shown in the Mathematical requirements)
Outline how bacteria become resistant to antibiotics as an example of natural selection
Explain how selection, the founder effect and genetic drift, including the bottleneck effect, may affect allele frequencies in populations
Explain how environmental factors can act as stabilising, disruptive and directional forces of natural selection
How does natural selection lead to adaptation in populations?
Explain that natural selection occurs because populations have the capacity to produce many offspring that compete for resources; in the ‘struggle for existence’, individuals that are best adapted are most likely to survive to reproduce and pass on their alleles to the next generation
Use the t-test to compare the means of two different samples (the formula for the t-test will be provided, as shown in the Mathematical requirements)
Explain the genetic basis of discontinuous variation and continuous variation
Explain what is meant by discontinuous variation and continuous variation
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