Punnett Square Calculator
Builds the Punnett square for a monohybrid or dihybrid cross and reports the genotype and phenotype ratios of the offspring.
Read the full guide to this tool
Results
Notes
- Uppercase is the dominant allele, lowercase the recessive; a monohybrid Aa × Aa cross gives the classic 3:1 phenotype ratio.
- A dihybrid AaBb × AaBb cross gives the 9:3:3:1 ratio, assuming the two genes assort independently.
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