Thanks for your imput guys! I didnt realize they are actually the same species. To answer the genetics question: If it a simple complete segregation allele, then the b&w gene is recessive:
Z=orange
z=b&w
Z is dominant over z
ZZ=orange, Zz=orange, zz=b&w
If you have an orange times a b&w it could be:
Zz x zz >>offspring: Zz, Zz, zz, zz (half orange, half b&w)
This *could* be the case, only if the alleles seperate completely during cell division