Comic book questions.
Also, no he couldn't. I don't think that the Surfer's ever encountered a kryptonian (barring cross-overs). And even if you count cross-overs, he didn't have NEARLY enough time to study the DNA/memorize it.
Could he...say...turn a skrull into a kree, for example?
Well...the power cosmic is the power plot. I wouldn't be upset or aghast at a writer having him do it. But I don't think he's ever performed a similar feat thus far.