Tail lengths com in short and straight or long and curly. The gene for grey skin is dominant over that for yellow skin which in turn is dominant over the gene for green skin. The gene for a long tail is dominant over the gene for a short tail. So the rarest kind of newt in the game is a small tailed, green newt and the most common is the large tailed, gray newt. The model of newts in Mendel consists of single chromosome diploid reproduction.
Features are totally dominant and have complete penetrance.