Genetics Calculator
Calculate inheritance probabilities for genetic traits and disorders using Punnett squares.
Supports monohybrid, dihybrid, and sex-linked crosses.
1. Calculator Type
About Mendelian Genetics & Punnett Squares
- Mendelian Inheritance: Inheritance of traits follows predictable patterns if each gene has two possible alleles, one dominant and one recessive.
- Punnett Squares: Visual tools that map out all possible allele combinations from parental gametes, predicting genotype and phenotype probabilities for offspring.
- Monohybrid crosses consider one gene; dihybrid crosses consider two genes. Sex-linked crosses involve genes on sex chromosomes, often resulting in different inheritance patterns for males and females (e.g., hemophilia, colorblindness).
Common Genetic Disorders:
- Cystic fibrosis, sickle cell anemia (autosomal recessive)
- Huntington's disease (autosomal dominant)
- Hemophilia, color blindness (X-linked recessive)
Punnett squares are essential tools in predicting the risk of inheriting such disorders, as well as interpreting simple genetic test results.

Try adjusting genotypes above to see how probabilities change!