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Allele Frequencies & Natural Selection

by Anonymous

Use allele frequency p to build genotype ratios, then change selection pressure, generations, and population size to see how frequencies shift and fluctuate.

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About this app

An interactive high school biology simulator for exploring allele frequencies, genotype proportions, natural selection, and genetic drift. Adjust dominant allele frequency p to see AA, Aa, and aa proportions calculated as p², 2pq, and q², then compare how selection pressure, generations, and population size change allele frequencies.

Use cases

  • High school biology students studying allele frequencies
  • Teachers demonstrating Hardy–Weinberg genotype proportions
  • Learners exploring how selection pressure changes recessive allele frequency
  • Classroom experiments on population size and random frequency fluctuations

Features

  • Interactive p control with AA, Aa, and aa proportions
  • Natural selection simulation across multiple generations
  • Selection pressure levels from none to lethal
  • Population-size controls showing the expected range of random fluctuation
  • Guided missions with reset and next-step controls