Punnett Square Calculator

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.

Parent Genotypes

Trait Information

Punnett Square

Genotype Results

Phenotype Results

Summary

Total Offspring
-
Genotypic Ratio
-
Phenotypic Ratio
-

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)

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