Lol. I think the guy is a little confused. Most of the time, het means you can't see the gene. You will only prove it by breeding. For example, het albino:

http://www.ball-pythons.net/forums/s...ght=het+albino

Now, to confuse you, I suppose a mojave could be het for a blue eyed lucy. Since, the homozygous form is a BEL, but most people just call them mojaves. Take a look at this:

http://www.worldofballpythons.com/morphs

Read through the morphs. It's helpful for beginners. Good Luck!