Population Genetics evo-edu.org

Population genetics simulations and support materials for allele frequency change, drift, selection, mutation, and migration.

Population change

Investigate allele frequency change under drift, selection, mutation, and migration.

Allele Tracker gives learners a way to compare adaptive and non-adaptive forces across repeated runs, parameter changes, and multiple populations.

Open application Study guide Curriculum alignment About API
Core question How do evolutionary forces change allele frequencies, and when do different forces dominate the outcome?
What you can explore Launch the interactive simulation, compare scenarios, and connect the results to study-guide prompts and curriculum-alignment notes.
What to watch for Compare repeated runs, watch for fixation and loss, and notice when the same setup still produces different outcomes because chance is doing real work.
Ways to use it Open the app, compare force-specific runs, and use the guide and curriculum pages to connect the patterns to explanation and evidence.

Use This Tool

Allele Tracker in the learning pathway

Interactive investigation

Launch the interactive simulation, compare scenarios, and connect the results to study-guide prompts and curriculum-alignment notes.

Concepts to keep in view

  • genetic drift
  • selection
  • mutation
  • migration
  • allele loss and fixation

Teaching and Inquiry

Good first moves

  • Run a baseline drift-only case and record when fixation or loss occurs.
  • Add migration and compare divergence across multiple populations.

Discussion moves

  • Use paired runs to compare drift-only scenarios with scenarios that add weak or strong selection.
  • Keep population size visible in the discussion so learners do not confuse drift with deterministic change.

Context and Related Resources

Public evo-edu framing over the legacy PopG implementation. Read the fuller about and provenance notes.