Punnett Square Calculator
Calculate monohybrid cross inheritance patterns
Note: This calculator performs a monohybrid cross analysis for a single trait, showing all possible genotypes and phenotypes in the offspring.
Punnett Square
Genotype Results
Phenotype Results
Summary
Total Offspring
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Genotypic Ratio
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Phenotypic Ratio
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Example: Mendel's Pea Plants
Seed Shape: Round (R) is dominant over wrinkled (r)
Cross: Rr × Rr (heterozygous × heterozygous)
Result: 1 RR : 2 Rr : 1 rr (genotypic ratio)
Phenotype: 3 Round : 1 Wrinkled (phenotypic ratio)