I've read the posts that the hatchery rhode island white's will often have a single comb instead of the accepted standard rose comb. Will these rhode island whites still produce the gold sex link offspring?
They're not true Rhode Island Whites. Aside from the comb type, which honestly if I found a, say, Rock with a pea comb it's not a Rock right?
They also have very poor body type compared to the standard. I'm sure the hatcheries crossed Leghorn x Red and continued from there.
And no, they won't produce sex-links far as I'm concerned. A sex-link is from a hen of silver or barred coloration bred to a rooster without such coloration. RIW's are just simply white. They might carry silver but I wouldn't know.