Cat Genetics Calculator
Predict your kitten’s coat color from parent genetics
Parent 1 Color
Parent 2 Color
Cat Coat Color Genetics Explained
Cat coat color genetics fascinates breeders and owners alike. The color and pattern of your cat’s coat is controlled by a small set of interacting genes, many of which are sex-linked. Our cat genetics calculator gives a simplified prediction of possible kitten coat colors based on the parents’ colors.
Key Coat Color Genes in Cats
| Gene | Effect | Type |
|---|---|---|
| B (Black) | Black vs brown pigment | Autosomal |
| O (Orange) | Converts black pigment to orange | X-linked |
| D (Dense) | Dense vs dilute (grey/cream) | Autosomal recessive |
| W (White) | Masks all other colors | Autosomal dominant |
| A (Agouti) | Produces tabby banding | Autosomal |
Why Are Calico Cats Almost Always Female?
The orange (O) gene is located on the X chromosome. Female cats (XX) can carry both orange and black genes simultaneously, creating tortoiseshell or calico patterns. Male cats (XY) have only one X, so they express either orange or black. Rare male calicos occur due to XXY chromosome abnormality.
Common Color Combination Results
- Black x Black: Black, grey, or brown tabby kittens
- Orange x Black: Tortoiseshell females, orange or black males
- Tabby x Tabby: Mostly tabby kittens of various shades
- White x Any: White kittens plus other colored kittens
- Calico x Any: Mix of tortoiseshell females and solid males
FAQs
Can two black cats have an orange kitten?
Yes, if a parent carries a recessive orange gene hidden by dominant black. Genetics is rarely as simple as visible coat color suggests.
What is a dilute calico?
A dilute calico has grey and cream patches instead of black and orange, caused by two copies of the recessive dilute (dd) gene reducing pigment density.
Can you DNA test a cat for coat color genes?
Yes! Companies like Basepaws offer cat DNA tests that reveal coat color genetics, breed ancestry, and health markers. It is the most accurate way to know your cat’s full genetic makeup.
Conclusion
Cat color genetics is a beautiful blend of science and surprise. Use our cat genetics calculator for a fun prediction, and pair it with our cat age calculator and cat weight calculator to keep your cat healthy at every life stage.
Share your predicted kitten colors in the comments below!