ABANDONED. Middle grade science fiction about gene splicing/cloning. black book cover with a handprint

[Jess]

Main character is a girl. i read this in the early 2000s probably about 2006

[Lisa]

Unwind Maybe not but cover fits.

[Rafi]

Star Split is about cloning and gene splicing, but I don't see an edition with the cover you describe. Do you recall anything else at all?

[Kris]

Jess, do you see your book in these lists?

https://www.goodreads.com/list/show/3...
https://www.goodreads.com/list/show/2...

Just a single hand with the palm flat against the cover?
What color is the hand?

[Lobstergirl, au gratin]

Jess, are you still looking for this or did you find it?

[Lobstergirl, au gratin]

Lobstergirl wrote: "Jess, are you still looking for this or did you find it?"

No response in 2 years. Moving to Abandoned.