Population Genetics

This chapter includes population genetics calculators that help you analyze allele and genotype frequencies in populations, with core tools for Hardy–Weinberg equilibrium, p and q allele frequency estimation, and expected genotype proportion calculations. It also supports common evolutionary biology tasks such as testing whether observed data fits Hardy–Weinberg assumptions, exploring how selection, mutation, migration, and genetic drift can shift frequencies over time, and converting between phenotype counts and genotype expectations for simple traits.

The difficulty level fits advanced high school and AP/IB biology through introductory university genetics and evolution courses, while still remaining accessible with guided, step-by-step outputs. Students can practice exam-style problems, teachers can generate consistent examples and quick checks, self-learners can build intuition about equilibrium conditions and frequency math, and advanced users can validate calculations when working with population datasets, class projects, or research-style summaries.

On this page you can enter observed genotype or phenotype counts, compute allele frequencies, calculate expected genotype frequencies, and compare observed vs expected results to interpret whether a population appears to be in equilibrium. Whether you’re studying evolution, solving Hardy–Weinberg word problems, or analyzing real population data, these interactive calculators make population genetics faster, clearer, and more reliable for learning and teaching.