Thank you. :3 I'm not sure what a blackback is, but I do hope to breed her once I trade in her tank for a bigger one. I feel like she'd make some pretty babies, morph or not.
Black back is just what it sounds like, a snake with a black back.
Some are genetic, some are not.
IMO your's looks like a genetic reduced pattern or a black back, either of which is a great trait to have in a female breeder.
She looks like she's very skinny, assuming it is a she.
Who sexed the snake for you so you know if it is a female or a male?
If it is a female I would make sure you get her healthy before contemplating breeding.