Zig-zag isn't particularly predictable, though generally speaking, the more aberrant the parents, the more aberrant the offspring, though you'll get a range of normals (or almost normals), slight zig-zags, moderate zig-zags and heavily zig-zagged. So they don't breed 100% true.
Tim
Partial zig-zag Creamsicle I made:
Zig-zag Reverse Okeetee I produced:
Zig-zag Rootbeer hatched in the 1990s:
Zig-zag Russian Rat I produced and sold to Jeff Cochran:
Zig-zag Albino Black Rat I hatched "back in the day":
Partial zig-zag Pacific Rattlesnake I found in CA:
I like zig-zags!
