Mutations on a waja will either appear with an X beside them or a / beside them. Mutations with an X beside them display that mutation. Mutations with a / beside them are carried in the genes of the waja, but are not displayed.

So how does this effect breeding?
If you were to breed two wajas, each with the same mutation with an X beside it, the mutation would be carried onto the pups as an X.

If you were to breed an X to a / the pups will most likely come out with an X. The same thing goes if you were to breed a / to a /, though occasionally pups will throw a /.

If you breed a waja with an X mutation to a waja without the same mutation, the mutation will most likely display as a /, but may occasionally display as an X, or not at all.

If you breed a waja with a / mutation to a waja without the same mutation, the waja will either carry the mutation as a /, or not at all.