Trihybrid Cross Punnett Square Calculator
Free interactive calculator for three-trait genetic crosses with detailed phenotypic and genotypic analysis.
Cross Parameters
Trihybrid Cross Results
Enter cross parameters to generate trihybrid Punnett square
Trihybrid Cross Guide
Three-Trait Inheritance
- • Follows independent assortment
- • 8x8 Punnett square (64 combinations)
- • Shows 27:9:9:9:3:3:3:1 ratio
- • Each trait segregates independently
- • Complex phenotypic combinations
Gamete Formation
- • Each parent produces 8 gamete types
- • All possible allele combinations
- • ABC, ABc, AbC, Abc, aBC, aBc, abC, abc
- • Equal probability for each gamete
- • Independent assortment principle
Phenotypic Classes
- • 8 different phenotypic classes
- • All dominant: 27/64
- • Two dominant, one recessive: 9/64 each
- • One dominant, two recessive: 3/64 each
- • All recessive: 1/64