Question

Based on fossil evidence, it appears that the original population of Furred Zee-s split, where a subset of the population moved towards the south and became isolated after an earthquake created a large rift through the continent The southern Zee population evolved over time to have significantly less fur that the original population and have been considered a separate species (Naked Zee-s)). A few of the fossil organisms have indications of fur, suggesting that the ancestral state was furred

Three small groups then fragmented from the Furred Zee population and colonized three islands (I1, I2, I3) . Islands 1 and 2 are very similar to each other in size and vegetation but Island 3 is significantly smaller. Island 3 cannot support the same population size as the other islands and that results in close genetic relatives breeding with each other.

Two fur color morphs exist in the Furred Zee populations, green and brown. The colors are a result of two different alleles: G (green); B (brown). The brown homozygotes and the heterozygote (BG) both produce brown fur. But a mutation in the Island 3 population resulted in the appearance of another fur color: purple (P). The allele frequencies vary based on location

Table 1: Furred Zee allele frequencies by geography

Population	Green morph	Brown morph	Purple
Original	0.5	0.5	-
Island 1	0.6	0.4	-
Island 2	0.8	0.2	-
Island 3	0.1	-	0.9

1. Has evolution occurred between the original population and the island populations? Explain why/why not. (4 pts) Please elaborate

Answer 1