According to my relatively limited knowledge of genetics, there would be a certain percentage which would show yellow stripes, and a percentage with white stripes.
I'd imagine the Punnet square would look something like this:
As I've added in the image, there are much more complicated genetic scenarios than just dominant/recessive that could be at play here.
In fact, after drawing this up, it's occurred to me that if this was truly the case, even some WSM pairs would be creating GSM offspring, as most fish would carry the recessive gene for gold stripes.
Although...the GSM and WSM clowns occur in geographically differing locations, correct? I guess if that's the case then perhaps all of the WSM clowns have straight "WW" genetics, with the "Wg" genotypes having been bred out over the years.
Or, yet another possibility is that they're actually genetically different due to the geographical separation, and there would be a hybridization of some sort as a result of breeding them.
I need to go to bed...I'm thinking myself in circles...lol