Class 12 Zoology simulations · Evolution

Natural selection on a trait

Apply stabilising, directional or disruptive selection to a population and watch the trait distribution change.

Open the simulation

What to notice

Industrial melanism in peppered moths is a classic example of directional selection.

Key relation

Fitness differences + heritable variation → change across generations

Try this

Choose directional selection and run 20 generations.

What you can change

• Selection: choose Stabilising, Directional, Disruptive
• Generations: 0 to 30

More in Evolution

• Genetic drift in small populations
• Hardy–Weinberg equilibrium and selection

See all Class 12 Zoology simulations or every Physica simulation.