Dihybrid Cross Calculator – Punnett Square
Instant Calculation
Crosses two independent traits simultaneously to track 16-combination distribution tracks.
A, B — Dominant alleles | a, b — Recessive alleles
Mother's traits
Trait 1 (A/a)
The maternal allele pair for the first genetic trait.
Trait 2 (B/b)
The maternal allele pair for the second genetic trait.
Father's traits
Trait 1 (A/a)
The paternal allele pair for the first genetic trait.
Trait 2 (B/b)
The paternal allele pair for the second genetic trait.
Resulting probabilities (%)
AABB
Homozygous dominant for both traits.
%
AABb
Homozygous dominant (A) and heterozygous (B).
%
AAbb
Homozygous dominant (A) and homozygous recessive (b).
%
AaBB
Heterozygous (A) and homozygous dominant (B).
%
AaBb
Heterozygous for both traits.
%
Aabb
Heterozygous (A) and homozygous recessive (b).
%
aaBB
Homozygous recessive (a) and homozygous dominant (B).
%
aaBb
Homozygous recessive (a) and heterozygous (B).
%
aabb
Homozygous recessive for both traits.
%
Instant calculation is ON.
Modifying attributes maps properties flawlessly below.
Due to the nature of this calculator, it cannot be reset. Please change the data above to recalculate values.
Punnett square
The 16-cell genetic cross matrix predicting offspring genotypes.
Phenotype Summary
The expected distribution of observable traits based on dominance.
| Phenotype Group | Ratio | Percentage |
|---|
