Assumes independent assortment and complete dominance. Does not model linkage, penetrance, viability effects or an individual clinical genetic risk.
How to use Dihybrid Cross Calculator - Punnett Square
- Read the method and enter quantities in the units shown on the form.
- Check the measurement basis, recorded event, genetic assumptions or the externally supplied care-plan instruction before calculating.
- Select Calculate, then read both the result and its limitations. Reset clears the result and restores the starting form.
Method and scope
Enumerate each parent’s gametes, combine alleles at each locus, then count genotype and complete-dominance phenotype probabilities.
Work through the input issue
For a related perspective, read The 9:3:3:1 Ratio Depends on Independent Assortment.
Related measurement
Punnett Square Calculator can help with a related question, using its own stated assumptions.
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