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Genetics Explained: Co-Dominant and Dominant
Punnett Squares Explained - Co-Dominant and Dominant

This is a bit of a laymans guide to predicting the outcome of breeding morphs with co-dominant and dominant traits eg: Pastel Ball Python in this case, but could be a Lesser Platinum Ball or Leatherback Bearded Dragon or any other co-dominant or dominant morph.

The easiest way, is to draw a Punnett Square.

NN= Normal (wild morph)
Np= Pastel
pp= Super Pastel

Normal to Co-dominant

You can see you would get half Normal (NN) and half co-dominant pastels (Np).

Co-dominant to Co-dominant

Results in 25% Normals (NN), 50% Pastels (Np), 25% Super Pastels (pp)

Dominant to Normal

The result of breeding a normal to a Super Pastel (the dominant form of the co dom Pastel) You would get all Pastel's.

Dominant to Co-dominant

If you paired a Co-dom Pastel to a dominant Super Pastel, the result would be 50% Pastel's and 50% Super Pastel's.

Dominant to dominant

The result of a Super Pastel mating to Super Pastel would result all Super Pastels!

NOTE: All these Punnett Squares illustrate theoretical outcomes, but by no means guaranteed!


Fiji Banded Iguana's
Spotted Fiji Banded Iguana's
This seasons projects
Moonglow Boa

++ This season ++ Blue Eyed Leucy's ++ Silverstreak's ++ Cinn's ++ Black Pastels ++ Lemon Pastels ++ Tiger Pastels ++ Woma's ++ Spider Balls ++ Pastel Balls ++ Sunglow Boas ++ Super Pastels ++ Salmon Boas ++ Albino Boas ++ Albino Balls ++ Pied Balls ++ Lesser Platy's ++ Mojave Balls ++ Ghost Ball's ++ Bumble Bee Balls ++ Red Italian Leatherback Bearded's ++ Cawley Red Flaming Tiger Beardeds ++ Satyrday Red Flaming Tiger Beardeds ++ Red/Green Transluscent Bearded's ++ Belgian Super Orange Florida Beardeds ++ Hypo Pastel Beardeds ++ Leucistic Beardeds ++ Hybino Leopard's ++ Pied Yemen Cham's++ Enchi Pastel Jungle Ball's ++ plus many others!!!! !

Red Italian Leatherbacks

Cawley Red Flaming Tiger Leatherback Bearded's


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Last modified: 03/01/09