Ball Python Genetics  

Ball Pythons are basically easy but take a while to memorize each morph and if it is Recessive, Co-dominant, or Complete dominant. (Complete dominance just means dominant) But that's why I've created this list of most of the Proven and even Unproven morphs and where they stand genetically. For a Chronological List, Click Here

(Not all are recorded! There are too many for me to keep up!)

 

RECESSIVE

Albino
Axanthic
Car. Albino
Clown
Desert Ghost
Gen. Stripe
Ghost/Hypo
Lav. Albino
Piebald

 

CO DOMINANT

HET:
1. Cinnamon Pastel
2. Fire
3. Yellow Belly
4. Russo Line
5. Phantom
6. Mojave,
7. Lesser, Butter
8. Black Back
9. Spot Nose
10. Woma Ball
11. Pastel (all lines)
12. Sable

HOMO:
1. Super Cinny
2. Black Eyed Lucy
3. Ivory
4. Blue Eyed Lucy
5. Blue Eyed Lucy
6. Blue Eyed Lucy
7. Platinum?
Blue Eyed Lucy?
8. Red Axanthic
9. Power Ball
10. Pearl
11. Super Pastel
12. Super Sable
 

 

DOMINANT

RDR Banded
Calico/Sugar
Granite
Spider
Pinstripe


 

UNPROVEN

Anerythristic
Arctic
Bengal
Hypermelanistic
Jaguar
Viper

DESIGNER TRAITS

Albino Pastel
Albino Spider
Amber
Blonde Lesser
Bumble Bee
Caramel Glow
Chocolate Pinstripe
Crystal?
Hypo Mojave
Hypo Pastel
Hypo Spider
Pastel Butter
Pastel Clown
Pastel Congo
Pastel Pewter
Pastel Phantom
Pastel Pied
Pastel Spinner
Queen Bee
(Pastel Lesser Spider)
Spider Mojave
Spider Pied
Spinner
And Many More!
 

*please note that I did not list every trait above, just the most common. If you want me to list another, just Email me.

Butter was thought to be Dominant, but it was bred to a Lesser and produced a Leucistic. Same for Mojave. It has been established that Butter, Lesser, and Mojave have much to do with each other. But, if they are the same gene, why is there a Platty Daddy? And whey does the Super Mojave have a charcoal head?   Most people refer to Butters as nicer Lessers, but that makes Mojaves and the Platty Daddy mysteries.

Pinstripe... Co-Dominant?!?!?!    Who Knows...

 

I think most people want to learn the punnet squares, so that's how I'll teach it. For the easy squares, there's Homozygous X Homozygous , Homozygous X Heterozygous, and Heterozygous X Heterozygous.

For more complicated squares like double Hets, CoDom X Dom, CoDom X Recessive, go to
Complicated Squares.

*     For the simple Recessive squares, I will use "A" and "a" for Albino.    "A" is normal and "a" is the Albino mutation.
*     For the simple Co Dominant squares, I will use "P" and "p" for Pastel.    "P" is the Pastel mutation and "p" is normal.    However, when you get the Homozygous for Pastel, you get a Super Pastel, which is twice as bright, twice as yellow, and twice as awesome.  (And is worth about 10x more)
*     For the simple Dominant squares, I will use "S" and "s" for Spider.   "S" is the Spider mutation and "s" is normal.   When you get "Ss" it is a Het, but there's no physical difference from the "SS"

 
The First Three are for Recessive Mutations
Homo X Homo
Albino X Albino


Breeding two Albinos will produce all Albinos.

 

Homo X Hetero
Albino X Het Albino


An Albino will a Het will produce 50% Albino and 50% Het
Hetero X Hetero
Het Albino X Het Albino


A Het X Het will produce 25% Normal, 25% Hets, and 25% Albinos.

Hints and Tips

      Recessive traits are pretty easy to deal with, a very cheap way to get a mutation you want (if you are willing to put it the time) is to buy Hets for what you want and breed them, because then you have a 25% chance of getting a Homozygous form of that mutation and costs less than half as much.

Keep in mind, this will not produce exactly one Normal, two Hets and one Albino, because there is a 25% chance for each egg, so you may get all Albinos, all Normals, or all Hets, the square just gives you an idea of what CAN happen.

The Next Four are for Co Dominant Mutations

Homo X Homo
Super Pastel X Super Pastel


Breeding two Super Pastels will produce all Supers.

Normal X Hetero
Normal X Pastel


A Normal and a Pastel will produce 50% Pastels and 50% Normals.

Hetero X Hetero
Pastel X Pastel



Two Pastels will produce 25% Super Pastels, 50% Pastels, and 25% Normals.

Homo X Hetero
Super Pastel X Pastel


A Super Pastel and Pastel will produce 50% Super Pastel and 50% Pastel.

The Next Four are for Dominant Mutations

Homo X Homo
Super Spider X Super Spider


Breeding two "Super" Spiders will produce all "Super" Spiders.

 

Homo X Hetero
Super Spider X Spider


Breeding a "Super" Spider with a Spider will produce 50% "Super" Spiders and 50% Spiders.

 

Hetero X Hetero
Spider X Spider


Breeding two Spiders will produce 25% "Super" Spiders, 50% Spiders and 25% Normals.

Hetero X Normal
Spider X Spider


Breeding a Spider to a Normal will produce 50% Spiders and 50% Normals. (See Acknowledgements) 

Acknowledgements

     Dominant traits are a little weird, because somehow with a Het Spider (Ss) it will look just like a Super Spider (SS) but will contain the small "s", which for some reason is the Normal allele. This is important, but is not.
     It is because if you have a Spider, you don't know if it's a Super or Het. So if you breed it to a Normal you can get two different results.   If it's a Het, like above, you will get 50/50. But if it's a Super Spider, you will end up will all Het Spiders (which look spider, and are).
     It is not important because it would take over three years to prove if a Spider is a Super or not, so no one really cares or takes the time for something that isn't worth it.

Sound easy? Then go to the Complicated Squares page.

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