Genetic Crosses
by Anonymous · ⭐ 1 · 🍴 0
A single dominant allele is enough for the dominant trait to show. Check the phenotypes of RR, Rr and rr, read the 3 : 1 ratio of an Rr × Rr cross straight off a Punnett square, then actually draw offspring and watch the observed ratio close in on theory as the sample grows.
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About this app
Genetic Crosses is an interactive Mendelian genetics learning app based on round and wrinkled pea traits. Explore how RR, Rr, and rr genotypes produce dominant or recessive phenotypes, use Punnett squares to predict offspring ratios, and draw simulated offspring samples to compare real results with theoretical expectations.
Use cases
- High school biology students learning Mendelian inheritance
- Teachers demonstrating genotype and phenotype relationships
- Learners practicing Punnett square predictions
- Exploring the 3:1 ratio in an Rr × Rr cross
- Investigating how larger samples approach theoretical ratios
Features
- Interactive comparison of RR, Rr, and rr genotypes
- Visual identification of round and wrinkled pea phenotypes
- Punnett square predictions for selectable parent genotypes
- Practice missions for 3:1, 1:1, and all-Rr outcomes
- Simulated offspring sampling with adjustable sample sizes
- Resampling with different random seeds