Can you transfer Pokemon from gold silver or crystal to emerald ruby or sappire Pokemon game?

No, you can't.

But there might be a way. You have to make it yourself, since it is not made yet, but the basic idea of my theory is this. The reasone the Pokemon cant move up, is because they don't have natures. If you can somehow transfure the Pokemon to the computer, give them a nature, you should be ablle to put them in your ruby game as a Pokemon you can see in the wild, if you can not transfure it directly to your PC. If someone makes this, please let it be known that we can do this, because i have all the games but cant trade them up for the new Black and Wight games that are coming out.