I know that when a host and symbiont are joined, they're supposed to be a "synthesis" of the two life forms, where the host would absorb the memories and other aspects of previous hosts, but how "fused" were they?
Was there any autonomous or independent thought from one or the other at all? Just as an example, when Jadzia Dax fulfilled Curzon Dax's blood oath to avenge Kang's son. What if Jadzia figured it's not my problem. That was Curzon Dax's promise, not Jadzia Dax's promise. Has there ever been any indication the symbiont or host could, for lack of a better word, disagree over something like that? Not in word, or course, but maybe just emotionally. Like a part of you doesn't want to do it, while another part feels an obligation to do it.
Was there any autonomous or independent thought from one or the other at all? Just as an example, when Jadzia Dax fulfilled Curzon Dax's blood oath to avenge Kang's son. What if Jadzia figured it's not my problem. That was Curzon Dax's promise, not Jadzia Dax's promise. Has there ever been any indication the symbiont or host could, for lack of a better word, disagree over something like that? Not in word, or course, but maybe just emotionally. Like a part of you doesn't want to do it, while another part feels an obligation to do it.

) and were not liable for such actions, even if they carried the memories of those events via the symbiont. Jadzia did mention that at times she felt memories and aspects of former hosts that didn't feel like herself, like the Jadzia self, and that it could be a bit disconcerting.