Board Thread:The Panopticon/@comment-1296654-20200630105828/@comment-45692830-20200701100638

(I will say the use of "romance" in the context of Clara and Twelve is highly misleading even if technically accurate, as Moffat in behind the scene interviews has also made clear that it's very much platonic, and thus completely different from River. So I really dislike that quote.)

Regardless, I think Scrooge is completely correct. Time Lord biology is obviously not something we know much about, and it's entirely possible that when we think of someone being a "DNA relative" the correct terminology is actually "biodata relative".

Even ignoring that, we know so little about human DNA as it stands that it's not strictly speaking impossible for the reshuffling of regeneration to be simply epigenetic and turning certain sections of your DNA on or off. (From my very very limited understanding of genetics this is highly unlikely, but the point remains.)

At the very least Susan should be listed as "adopted Granddaughter" similar to Miranda Dawkins. Which, aside from the issue that Susan might be adopted in her own right due to Lungbarrow, etc etc, is exactly analogous. As Miranda is a descendant of a version of the Doctor and refers to Eight as her father.