Howling:Donna and the Chameleon arch

One thing I've wondered, the Doctor was able to change his DNA from Time-Lord to Human using the chameleon arch, storing his conciousness in a fob watch. Was there anything on screen to suggest that he could not do the same for Donna? If he could do that, wouldn't that solve the problem of her conciousness being Time-Lord.

I've been thinking about possible reasons that it may not have worked, such as Donna not being fully Time-Lord so it wouldn't work on her, or the chameleon arch being broken, but it really confuses my why the Doctor wouldn't attempt to fix it then use it on her, making her Human again. Does anyone have any sort of idea why he didn't, or possible reasons why he didn't? The Thirteenth Doctor 18:51, August 3, 2010 (UTC)

Being half human wouldn't effect the chameleon arch, since the doctor is half human. He didn't need to use the chameleon arch on Donna, because physcially she didn't change at all. The Doctor's mind was just in her head, and that was too much for her. The chameleon arch was used to change biology, for example John Smith only had 1 heart. Since Donna's problems were with her brain, the Doctor just had to wipe her memory using his weird mind meld thing.Icecreamdif 18:58, August 3, 2010 (UTC)


 * I'm pretty sure her biology changed. Both she and the Doctor said she was part Time-Lord. And he could still use it to store her conciousness, couldn't he? The Thirteenth Doctor 19:03, August 3, 2010 (UTC)

The part of her that was timelord was her mind. There was a line somewhere in the episode where she said something like, "I got the best part of the Doctor-his mind." Her body was still human, and she still only had one heart. The only thing that was killing her was a timelord mind in her head, so the Doctor wiped her memory to solve the problem.Icecreamdif 19:07, August 3, 2010 (UTC)