How to Use the Trihybrid Cross Calculator
Calculate 3-gene Mendelian inheritance Punnett squares:
Enter Parent 1
Enter Parent 1 genotype (e.g. AaBbCc).
Enter Parent 2
Enter Parent 2 genotype (e.g. AaBbCc).
Generate 8x8 Grid
Engine evaluates 8 gametes per parent for 64 total offspring squares.
View Ratios
Inspect 27:9:9:9:3:3:3:1 phenotypic ratios.
Key Features & Mendelian Genetics
8×8 Punnett Square Matrix
Calculates all 64 genotypic combinations across 3 independent loci.
Forked-Line & Probability Support
Uses independent assortment to compute exact offspring probabilities.
100% Private Client Compute
Runs in browser memory with zero tracking or server logs.
Genetics Guide: Independent Assortment in Trihybrid Crosses
A trihybrid cross tracks inheritance of three distinct unlinked traits simultaneously. According to Mendel's Law of Independent Assortment, each gene pair segregates independently, yielding $2^3 = 8$ distinct gamete types per parent and 64 total zygote outcomes.
Frequently Asked Questions
?How many gamete combinations does a trihybrid individual produce?
A heterozygous trihybrid individual (AaBbCc) produces 8 different gamete types (ABC, ABc, AbC, Abc, aBC, aBc, abC, abc).