Cat Genetics Calculator
Predict feline coat colors, patterns, and traits with our comprehensive cat genetics calculator. Perfect for breeders, veterinarians, and cat enthusiasts exploring feline inheritance patterns and genetic diversity.
Cat Coat Color Inheritance Calculator
Calculate the probability of coat colors in offspring based on parent genotypes. This tool focuses on the major color genes: Orange (O), Black (B), and Dilute (D).
Female Parent
Male Parent
Understanding Cat Genetics
Cat genetics is a fascinating field that determines everything from coat color to pattern distribution. Our cat genetics calculator helps breeders and enthusiasts understand how specific genes interact to produce the incredible variety of feline appearances we see today.
Key Genetic Principles
The Orange gene (O) is X-linked, meaning it's carried on the X chromosome. This is why tortoiseshell and calico cats are almost always female. Male cats need only one copy of the orange gene to be orange, while females need two copies.
Color Interactions
The Black gene (B) and Dilute gene (D) work together to create the base colors. The dilute gene lightens colors: black becomes blue (gray), orange becomes cream, and chocolate becomes lilac.
Common Cat Colors & Patterns
Basic Colors
Pattern Types
- Tabby: Striped or spotted patterns (dominant)
- Solid: Uniform color without patterns
- Pointed: Darker extremities (Siamese pattern)
- Bicolor: White with colored patches
Breed-Specific Genetic Traits
Siamese & Oriental
- • Colorpoint gene (cc) required
- • Temperature-sensitive enzyme
- • Darker colors on cooler extremities
- • Blue eyes linked to colorpoint
Persian & Longhair
- • Recessive long hair gene (ll)
- • Both parents must carry gene
- • Dense, flowing coat texture
- • Requires specific grooming
Turkish Van & Bicolor
- • White spotting gene (S) dominant
- • Variable white distribution
- • Can affect hearing in some cases
- • Creates unique pattern variations
Related Genetics Calculators
Advanced Cat Genetics Concepts
Epistasis in Cat Colors
Some genes can mask the expression of others. For example, the white spotting gene can mask underlying color genes when present in high amounts, creating solid white cats.
Sex-Linked Inheritance
The orange gene demonstrates sex-linked inheritance perfectly. This explains why tortoiseshell males are extremely rare and usually sterile due to chromosomal abnormalities.
Breeding Considerations
Professional breeders use genetic calculators to plan matings that avoid genetic disorders while maintaining desirable traits. Understanding inheritance patterns is crucial for responsible breeding.
Genetic Health
While coat color genetics are generally harmless, some genes can be linked to health issues. White cats with blue eyes may have increased risk of deafness due to linked developmental pathways.