Mathematical models using selection, mutation, drift and migration to predict allele frequency change.
Wright-Fisher models simulate drift in finite populations; selection coefficients describe the strength of selection; coalescent theory looks backward to infer ancestry. Mutation-selection balance keeps harmful alleles at low frequency.
Models help predict the effect of selection on allele frequency.
Mathematical models using selection, mutation, drift and migration to predict allele frequency change.
Population Genetics Models is one of the 54 topics in Genetics. It is rated Advanced, so it suits learners who want specialist depth. Related topics in this area include Genetic Drift, Gene Flow, Gene Pool.
Heterozygote advantage maintains a stable polymorphism at equilibrium.
Work through the Beginner topics in Genetics first, such as Heredity, Gene, Allele, then return to Population Genetics Models. Advanced topics assume the Intermediate vocabulary.
The closest topics to Population Genetics Models are Genetic Drift, Gene Flow, Gene Pool, Hardy-Weinberg Principle. Comparing them side by side is a good way to see how the ideas connect.
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Population Genetics Models. To practise the whole of Genetics, use the Genetics quiz.
Population Genetics Models: Mathematical models using selection, mutation, drift and migration to predict allele frequency change. Genetic Drift: Random changes in allele frequency that have strong effects in small populations, including the founder effect and bottleneck. Read both side by side and note what each one explains.
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Genetic Drift and explain the difference aloud. Finally, take the Genetics quiz and come back to this page for any question you miss.
Random changes in allele frequency that have strong effects in small populations, including the founder effect and bottleneck.
🧬 GeneticsThe movement of alleles between populations through migration and interbreeding, reducing differences between them.
🧬 GeneticsThe total collection of alleles in all individuals of a breeding population.
🧬 GeneticsPredicts that allele and genotype frequencies stay constant in an idealised population, following p squared plus 2pq plus q squared.
🧬 Genetics