The Pastel gene is a co-dominant (heterozygous) gene which is in a visible Het and when bred to another Pastel will produce the dominant (homozygous) form of Super Pastel. A pastel bred to a normal pattern animal will produce 50% Pastel off-spring and 50% normal offspring. A Pastel x Pastel pairing will result in 75% Pastel and 25% Super Pastel off-spring. A Super Pastel x Normal will result in 100% pastel off-spring A Super Pastel x Pastel will produce 50% Super Pastel and 50% Pastel off-spring But here's where it can go wrong the odds are per animal not per clutch so it is possible to have no Pastel off-spring produced or to have 4 out of 5 neonates being Pastel. Great isn't it. You can improve on the quality of Pastels produced by selectively breeding them to light/brightly coloured females or by mixing the genetics with other morphs such as Yellow Belly and Ghost