Laphtiya wrote:True, they could have taken cells from the original before reviving the corpse of Idaho, but I always imagined that they basically had the original body on ice somewhere and just took cells from it when Leto demanded a new Ghola. Again it could depend on how the Gholas were conditioned before the reawakening of the original memories.
We're now back to square one, since if Duncan in GEoD was grown from the cells taken before he was brought back to life as Hayt, no way this Duncan could remember Leto and Ghanima.
BTW, an interesting question is when exactly the Tleilaxu started to grow gholas as clones from cells, rather than revive corpses in axolotl tanks.
Another noteworthy thing is that Bijaz, when learning of Duncan's restored memories, gleefully says he's going to get back all his past lives, implying that a) the axolotl regrowth process could be used multiple times with the same person and b) in such a case, it was possible to regain all of the memories even if previous ghola incarnations did not have their original memories awakened. The latter is a bit dubious since Duncan was the very first ghola to regain his former personality, but I guess since the Tleilaxu attempted this before, they had certain more or less viable theories about the whole process.