Recall the following synopsis from SimBio: Simploids are a fictitious species of animal. One population of Simploids lives in Brighton, a region that receives full sun 80% of the time. Another population of Simploids lives in Shady Grove, an area that is often cloudy and rainy. All Simploids have a gene called SUN1, which protects against the harmful UV rays from the sun. The Simploids living in Brighton are much more likely to have an allele of the SUN1 gene that offers more UV protection, compared to those from Shady Grove. Some Brighton Simploids with the high-protection SUN1 allele decide to move to, and join, the Shady Grove population. Has the Shady Grove population evolved? No, because there is no evidence of selective survival in the individuals who moved from Brighton to Shady Grove. Yes, the population has evolved by migration, because the migrants have changed the Shady Grove population's allele frequencies. No. The population may evolve in the future, but there has not yet been sufficient time to determine if it will or not. Yes, because the movement of the Simploids to Shady Grove resulted in genetic drift
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