SuperCalX

Punnett Square Calculator

Generate a Punnett square for a monohybrid cross.
Calculator
Enter your values
Results
A
a
A
AA
Aa
a
Aa
aa
Genotype AA
1/4 (25%)
Genotype Aa
2/4 (50%)
Genotype aa
1/4 (25%)
Analysis
Interpretation of the current calculator output

Calculation Summary

The current inputs have been processed for the punnett square calculator. Review the results panel for the computed output and use the charts tab to compare the current values visually.

How to Read It

The main result shows the direct answer for your current inputs. Supporting sections below explain the method, example, and common questions so the result is easier to interpret.

How to Use

Step-by-step instructions
  1. 1Enter the 2-letter genotype for Parent 1 (e.g., Aa).
  2. 2Enter the 2-letter genotype for Parent 2.
  3. 3The calculator will display the 2x2 Punnett square.

Mendelian Cross

Predicts the genotype probability of offspring from two parents.
P1 × P2 → F1 Generation

Variables:

ADominant allele
aRecessive allele

Example

Heterozygous Cross

Inputs:

P1:Aa
P2:Aa

Steps:

  1. 1.Gametes P1: A, a
  2. 2.Gametes P2: A, a
  3. 3.Offspring: AA, Aa, Aa, aa
Result:
1 AA : 2 Aa : 1 aa

Frequently Asked Questions

What is a monohybrid cross?

A cross between two organisms involving only one trait (e.g., flower color).