| abstract
| - See, there's this biological phenomenon called chimerism, which is basically the opposite of identical twins? Instead of one fertilized egg producing two identical babies, two or more fertilized eggs produce one individual with a patchwork of different DNA. If one of the contributing zygotes is genetically male and the other is genetically female, chimerism can result in an intersex individual. And in people, one of the most common symptoms of chimerism is actually the person in question having more than one blood type running through their veins. Maybe the Uu session's ectobiology machine glitched, and instead of producing two offspring grubs from their ancestor/s' paradox slime, it produced a chimera grub with a mixed blood color (black blood? tie-dye christmas blood? Who even the fuck knows) and mixed sex traits. Sburb, realizing it done fucked up, then induced Multiple Personality Disorder in the patchwork trollbaby so that the minimum number of people needed to play Sburb could be achieved. Time shenanigans via Trollian and sburb-granted time powers will probably need to be liberally used, though, in order to make entering the medium Not Fucking Impossible. Dreamselves tend to be closer to the individual's personal image of themself (terezi likes being blind and thus her dreamself is blind, while tavros doesn't like being crippled and so his dreamself can walk), so UU and uu's seperate dreamselves could manifest as having the blood color and physical sex that they imagine they would have if they hadn't been merged into a single person at inception. Assuming that the recent Calmasis' Legs panel is more indicative of their blood color than their chat symbols are, UU identifies as a redblood because she is a bluh bluh huge humaboo or some shit.
* Or, given Gamzee already has shown split personality disorder to some extent and many of the other trolls have mental disorders, limebloods are just particularly prone to develop multiple personalities. The whole shenanigans with Chimerism is intriguing but there's no indication that ectobiology machines can even glitch in that way; all shown ones have been pretty reliably fool proof, especially when it comes to making the players and their ancestors. There's more to UU than there seems to be as well, as she told Jake her name would probably best never told, meaning she might outright be someone already existent in the cast (or not a Troll at all) and the brief appearance hints we've seen have all been a deliberate misdirection.
* Besides which, none of this explains why UU said she and uu have different blood colors.
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