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Calculateur de génétique

Ratios de génotype d'un croisement monohybride à partir de deux génotypes parentaux.

Introduction

Genetics Calculator — Monohybrid cross genotype ratios from two parent genotypes. Enter Parent 1 genotype, Parent 2 genotype to get an instant, accurate result.

Formule

A general monohybrid-cross tool: crosses two single-gene genotypes (e.g. Aa × Aa) by pairing each allele of parent 1 with each allele of parent 2, then tallies the resulting offspring genotype ratios — the same Punnett-square logic used for a single trait.

Étape par étape

  1. Enter the Parent 1 genotype.
  2. Enter the Parent 2 genotype.
  3. Click Calculate to see your result instantly.

Exemple concret

Example: With Parent 1 genotype = Aa, Parent 2 genotype = Aa, the Genetics Calculator gives Genotypes: AA, Aa, Aa, aa, Ratios: 1, 2, 1.

Questions Fréquentes

How do I enter a genotype?
Use two letters representing the two alleles at one gene, e.g. "Aa" for heterozygous, "AA" for homozygous dominant, or "aa" for homozygous recessive.
Does this handle two genes at once (dihybrid crosses)?
No, this tool works with a single gene (two alleles) at a time; each gene should be crossed separately.
What inputs does the Genetics Calculator need?
You'll need to provide: Parent 1 genotype, Parent 2 genotype. All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Genetics Calculator?
The Genetics Calculator applies the formula exactly as calculated — A general monohybrid-cross tool: crosses two single-gene genotypes (e.g. Aa × Aa) by pairing each allele of parent 1 with each allele of parent 2, then tallies the resulting offspring genotype ratios — the same Punnett-square logic used for a single trait. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the Genetics Calculator free to use?
Yes, the Genetics Calculator is completely free, requires no signup, and runs instantly in your browser.

À propos de Calculateur de génétique

The Genetics Calculator uses a real, verifiable formula — A general monohybrid-cross tool: crosses two single-gene genotypes (e.g. Aa × Aa) by pairing each allele of parent 1 with each allele of parent 2, then tallies the resulting offspring genotype ratios — the same Punnett-square logic used for a single trait. — so results are accurate every time, not an approximation.