So they would produce males and females, its just that they would mostly produce only one sex of bananas and banana combos. Non banana would usually be the opposite sex. Banana does hop chromosomes, so every now and again you might get a banana of the opposite sex.
Banana Butter YB x Pastel Butter YB may give you some tough to identify hatchlings but genetically they should be: https://www.worldofballpythons.com/w...emale=34,32,20
I put a link to wizard instead of typing it out because it's a long list.