I'm no geneticist, but wouldn't Tsunade inherit some of that delicious power then? Seems to me she ran out fairly quickly.
The fact that Obito is still standing is simple plot no jutsu if you ask me. He must have enough power to betray Madara or something, I guess. Something's amiss, that's for sure.
I know, she should've done that by now.
Dunno, Kishi kinda downplayed her or at least that's how it seems, when it comes to this. I mean, given his new generation surpasses the older one, Tsunade should've been some sort of second version of Hashirama.
Though she's pretty close as she already got to heal her wounds like Hashirama did, with no handseals.
I just wonder if he posessed the same ability like her, to heal an entire village or it was limited just to himself.
Plus, I bet that there were some researches done with Hashirama's DNA.
Thing that makes me ask myself... if everyone had access to Hashirama's DNA like it was a flower waiting to be harvested at any time, why didn't Tsunade had access to it?
But oh well... Kishi is...Kishi.