As you all probably remember, the description of the "Biotic Boost" upgrade for Jack in ME2 indicates that she is suffering from "progressive neural degeneration" even though her biotics are getting stronger. I've tried to find more information on this, and I've heard she mentions it at some point if romanced, but I've yet to find it on YouTube if that's true.
So I'm wondering two things:
(1) For those of you better versed in the lore about biotics than I am, does this mean that giving her the "Biotic Boost" upgrade will: (a) stop the degeneration; (

accelerate the degeneration; or © make no difference?
(2) Is there any difference in the ME3 dialogue or ending slides depending on whether or not you give her the boost?
Thanks in advance!