1. wait until she is dead (obviously)Hey, can anybody help me out with Terra? What do I need to do to clone her?
2. visit her cell (Lex will have a monologue about cloning her from a sample of her hair)
3. go to cloning (like the game tells you to do in step 2)
4. ???
5. profit
[tired ranting]
I mean, there is only one "secret" scene in game. Everything else is right there in front of you. The game is rather linear. It tells you what, when and how to do what you need to do. Just play the game and read the damned text.
[/tired ranting]