The Goldendoodle (AKA Groodle) is a mixed breed dog, the resulting of breeding an Golden Retriever with a Poodle. As a cross breed, there are many different ways that breeders can mix the two breeds to alter the genetic make up of the Goldendoodle. The most common Goldendoodle generations are F1, F1b, F1bb, F2, F2b, F2bb…