An F1b Goldendoodle whose parents are an F1 Goldendoodle and a purebred Poodle will, in theory, be 25% Golden Retriever and 75% Poodle. As such, theres a much higher chance that the F1b pup will be a very light shedder. This is because the pup contains more genes from the Poodle side, and standard poodles are inherently light/non-shedding.