Punnett Square Calculator
Create a Punnett square for a monohybrid cross between two parents. Enter the genotypes of each parent to see all possible offspring genotypes, phenotype ratios, and probabilities.
Inputs
Results
Dominant %
75.0%
Recessive %
25.0%
Genotype Ratio
1:2:1
Punnett Square Results
| Parameter | Value |
|---|---|
| Parent 1 Genotype | Aa |
| Parent 2 Genotype | Aa |
| Cross | Aa x Aa |
| AA (Homozygous Dominant) | 1/4 = 25.0% |
| Aa (Heterozygous) | 2/4 = 50.0% |
| aa (Homozygous Recessive) | 1/4 = 25.0% |
| Dominant Phenotype | 75.0% |
| Recessive Phenotype | 25.0% |
| Genotype Ratio | 1 : 2 : 1 |
| Phenotype Ratio | 3 : 1 |