Yaal can help me on this ?

b is dominant over the allele for the white fur.

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.  

the principle of segregation describes how pairs of gene variants are separated into reproductive cells. from his data, mendel formulated the principle of segregation. we now know that the segregation of genes occurs during meiosis in eukaryotes, which is a process that produces reproductive cells called gametes.