BTW ewest,
Your biologist may have been trying to say something different but--Fish genetics DO work that way. ALL genetics work that way. That's actually the beauty of genetics. We are learning more and more about genetics over time, but fish genetics, cattle genetics, butterfly genetics, human gentics--IT'S ALL THE SAME.
Aa X Aa will always yield AA, Aa, Aa and aa.
My oldest daughter is 12 years old and she has already been caught classic Mendelian theory. Maybe what he was trying to say that new genes weren't necessary to add to an already healthy pond, but, as I stated before, I wouldn't start with two crappie.
