I'm assuming you mean either banana or coral glow to a BEL complex animal.
Depending on the BEL it would be one of the two BEL genes either by itself or crossed with banana/coral glow.
So a Mojave/Lesser BEL crossed to a Banana would yield a 25% chance of each combo below:
Lesser
Mojave
Banana Lesser
Banana Mojave
But that would change depending on what two genes made the BEL. I say that because these genes:
Bamboo,
Butter/Lesser (platinum),
Mojave,
Russo,
Phantom,
Mystic,
Mocha,
and Special
will all make a BEL when combined in almost* any combination.
Some look better than others, (Mojave/Lesser), and some have pattern and are not quite BEL's such as Mystic Potion or Crystal.
But there is a lot that could happen depending on the BEL variety.
Does that answer your question? Or was I too confusing? Cause I know it's a lot to take in.