One of the "Five Lights", Laurie Tromette (codename: Transonic) is one of the new mutants who got her powers after the whole "House of M" story arc. After her powers were activated, she permanently resembles the love-child of existing characters Mystique & Apocalypse. She even has the ability both characters share - the ability to shape-shift her physical form, albeit in a limited fashion. She can also fly, an ability often used by Apocalypse. Did I mention she runs around naked, just like the movie version of Mystique?
I've looked up the character, but I'm not really caught up on the X-Men stuff within the past few years. I didn't see any indications on her profile that she was anything other than what she appears, but you never know if those are complete.
Given the complicated relationships of the X-Men universe, are the abilities and appearance of Transonic an indication of any relationship between her, Mystique, or Apocalypse?