Human Genetics Simulator - Interactive Punnett Square

About Mendelian Inheritance

Mendelian inheritance describes how traits are passed from parents to offspring through genes. Gregor Mendel discovered that traits are inherited in predictable patterns based on dominant and recessive alleles.

Key Concepts:

Alleles: Different versions of a gene (e.g., B for brown eyes, b for blue eyes)
Dominant Allele (Capital Letter): Masks the recessive allele and is expressed in the phenotype
Recessive Allele (Lowercase Letter): Only expressed when two copies are present
Genotype: The genetic makeup (e.g., BB, Bb, bb)
Phenotype: The observable trait (e.g., brown eyes, blue eyes)
Homozygous: Two identical alleles (BB or bb)
Heterozygous: Two different alleles (Bb)

🎯 Select Trait to Study

Choose a Human Trait:

👨‍👩‍👧 Enter Parental Genotypes

👩 Mother's Alleles

👨 Father's Alleles

📚 Genetic Notation Guide

Capital Letter (B): Dominant allele

Lowercase Letter (b): Recessive allele

BB or bb: Homozygous (same alleles)

Bb: Heterozygous (different alleles)

Note: Use standard allele notation with capital letters for dominant traits and lowercase for recessive traits.

📊 Punnett Square Results

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📈 Genetic Analysis Summary

Genotypic Ratios

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Phenotypic Ratios

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Probability Summary

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