Betta Genetics
Visualize genotype probabilities with a simple Punnett-square model.
Punnett Square (1 locus)
Genotype AA
25%
Genotype Aa
50%
Genotype aa
25%
Phenotype Probabilities
Dominant trait
75%
Recessive trait
25%
Related Guide
Punnett-style modeling helps visualize expected trait distributions before pairing fish.
Actual expression can vary due to polygenic effects and environmental influence.
Prioritize health and line stability over single-trait selection.
FAQ
What does dominant vs recessive mean?
Dominant traits appear when at least one dominant allele is present.
Can this guarantee offspring phenotype?
No. It estimates Mendelian probabilities, not guaranteed outcomes.
Why only a few loci?
This is a starter calculator focused on practical prediction clarity.
How should I use this for breeding plans?
Combine genetic estimates with health, temperament, and ethical standards.
Can I extend to more genes later?
Yes. The model can be expanded to additional loci and linked traits.
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Results are estimates based on general guidelines. Individual species may have specific requirements.