Bel question

Got offered a:
"0.1 Lesser butter. Poss yb spider banana"

parents are:
Banana (female maker) butter yb x spider lesser

He said it should be banana too since its from hes female maker but how can i be sure, and will it? :D
and can i see it in any way with UV or something? =)

ooops
it was a Mojave butter Poss yb spider banana

from a Banana(female maker) mojave yb x butter spider.

not that it matter