🧬 Genetics Lab
🧬 Genetics Lab
Punnett Square
Genotype Ratio
Phenotype Ratio
Offspring Visualization
Mendel's Laws
Genetics Simulation: Traits, Inheritance & Punnett Squares
This genetics simulation covers the foundational principles of heredity established by Gregor Mendel — segregation and independent assortment — and extends to more complex patterns like incomplete dominance, codominance, and sex-linked inheritance. Students cross virtual organisms, predict offspring ratios using Punnett squares, and test whether observed phenotype distributions match Mendelian expectations. It is a go-to free online resource for high school biology and AP Biology genetics units.
What you can do in this simulation
- Set up monohybrid and dihybrid crosses and generate offspring genotypes and phenotypes
- Use Punnett squares to predict ratios and compare predictions to simulated outcomes
- Explore incomplete dominance and codominance to see blended or dual-expressed phenotypes
- Model sex-linked inheritance by tracking X-linked traits across generations
- Run multiple generations to observe how recessive alleles can reappear after skipping a generation
Concepts covered
Mendelian genetics · dominant and recessive alleles · Punnett square · inheritance patterns · genotype and phenotype · sex-linked traits
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