Quote Originally Posted by paulh View Post
And there are visual hets.

A normal-looking het (generally just written "het") occurs when a recessive mutant gene is paired with a normal gene. That's the most common type of het and has been well covered in this thread.

A snake is a "visual" het when a dominant or codominant mutant gene is paired with a normal gene. These snakes do not look normal.

There is no 50% or 66% probability het with codominant mutant genes. You can tell what the snake's genes are just by looking at the snake.
You're going to have to forgive me for giving the OP exactly as much information as was needed to answer their question as it relates specifically to this hobby. Not everyone wants to sit through a genetics lesson in order to understand the terminology in full detail.