Did I open a can of worms, or what? (Yikes)! Sorry, you guys... I thought it was a question that could just be answered;I didn't realize that it was a topic of debate. Now I'm confused, and you guys are arguing.
The argument is hobby lingo vs the rest of the world. Don't worry about it. The answer to your question is right here:
Originally Posted by Archimedes
Het is short for heterozygous. Het is the colloquial term for individuals that carry the gene for recessive traits.