Is it possible for a mixed-breed to fit the breed standard of a purebreed?

I’ve just seen some pictures of Rough Collie X Pomeranian puppies and they look very much like Cardigan Welsh Corgis. I would have put money on it until someone told me they were mutts lol.

Is it in any way possible for a mutt to fit a breed standard? I know it would be as unlikely as hell…

What are the negative aspects of owning a good-quality collie as a family dog?

AKC and Collie Club of America sources only tell prospective owners how great collies are. I need some more balanced information. I’m not so much interested in individual anecdotes. Please no “my brother’s best friend’s hairdresser had a collie that…” stories. But I would appreciate documented sources on the breed in general, particularly temperament and health issues.

Where can I find information on Collies?

I want information like websites on nothing but the rough coated collies.