Dihybrid Cross Punnett Square Calculator
Analyze two-trait inheritance patterns with our comprehensive dihybrid punnett square calculator. Calculate genetic probabilities, phenotype ratios, and inheritance patterns for complex genetic crosses.
Interactive Dihybrid Cross Calculator
Parent 1 Genotype
Enter two alleles for the first trait
Enter two alleles for the second trait
Parent 2 Genotype
Enter two alleles for the first trait
Enter two alleles for the second trait
Example Usage:
For plant height and seed color: Parent 1 could be Tt (tall) and Yy (yellow), Parent 2 could be Tt (tall) and Yy (yellow). This represents a classic dihybrid cross.
Understanding Dihybrid Crosses
A dihybrid punnett square calculator analyzes the inheritance of two different traits simultaneously. This advanced genetic analysis helps predict the probability of offspring inheriting specific combinations of traits from their parents.
Mendel's Second Law
Dihybrid crosses demonstrate Mendel's law of independent assortment, which states that alleles for different traits are distributed independently during gamete formation. Our two trait punnett square calculator applies this principle to generate accurate genetic predictions.
Classic Phenotype Ratios
The classic dihybrid cross between two heterozygous individuals (AaBb × AaBb) produces a 9:3:3:1 phenotypic ratio. This ratio represents the probability of observing different trait combinations in offspring.
Applications & Benefits
Agricultural Genetics
Dihybrid crosses are essential in agricultural genetics for developing crops with multiple desired traits. Plant breeders use our dihybrid cross calculator to predict the outcome of crosses involving traits like disease resistance and yield.
Educational Applications
- Understand complex inheritance patterns
- Visualize genetic probability calculations
- Learn about independent assortment
- Practice with real genetic scenarios
Research Applications
Scientists use dihybrid analysis to study gene interactions, genetic mapping, and evolutionary patterns. Our calculator provides the foundation for understanding more complex genetic phenomena.
Common Dihybrid Cross Examples
Plant Height × Seed Color
Traits: Tt (height) × Yy (color)
Classic Mendel's pea plant experiment studying tall/short plants with yellow/green seeds.
Flower Color × Plant Height
Traits: Pp (color) × Hh (height)
Studying purple/white flowers with tall/dwarf plant characteristics.
Coat Color × Pattern
Traits: Bb (color) × Ss (pattern)
Animal breeding for specific coat colors and pattern combinations.