Predict offspring genetics, visualize morph probabilities, and plan your ball python breeding projects
Detailed Offspring Breakdown
Ball Python Genetics Guide
Recessive Genes
Both parents must carry the gene for it to visually express in offspring (e.g., Albino, Pied, Clown).
Co-Dominant Genes
A single copy creates a visual morph, two copies create a “super” form (e.g., Pastel, Mojave, Lesser).
Dominant Genes
Only one copy needed for visual expression (e.g., Pinstripe, Spider).
Incomplete Dominant
Similar to co-dominant but with varying expression levels (e.g., Yellow Belly).
Breeding Tips & Best Practices
Health First
Only breed healthy, well-established adults of appropriate size and age.
Genetic Diversity
Avoid excessive inbreeding to maintain genetic health and vigor.
Record Keeping
Maintain detailed records of pairings, clutches, and genetics for future reference.
Plan Ahead
Have homes prepared for all potential offspring before breeding.
Did You Know?
There are over 7,500 possible ball python morph combinations, with new ones being discovered regularly!
Popular Ball Python Morphs
| Morph Name | Inheritance | First Produced | Characteristics |
|---|---|---|---|
| Albino | Recessive | 1992 | Lack of melanin, yellow and white coloration |
| Piebald | Recessive | 1997 | Patches of unpigmented scales |
| Pastel | Co-Dominant | 1997 | Brightened colors, blushing |
| Pinstripe | Dominant | 2001 | Thin, reduced pattern with pinstripe down back |
| Clown | Recessive | 1999 | Reduced pattern with head stamp and dorsal stripe |
| Mojave | Co-Dominant | 2000 | Flames along sides, keyhole patterns |
| Banana | Co-Dominant | 2003 | Yellow base color with dark freckles |
| Spider | Dominant | 1999 | Web-like pattern, head stamp, possible wobble |
Note: This calculator provides genetic probabilities based on Mendelian inheritance patterns. Actual breeding outcomes may vary.
Always research potential genetic issues associated with specific morph combinations before breeding.