The Hawaiian Islands were "born" in the middle of the Pacific Ocean from volcanic eruptions. A genetic analysis indicates that the native species of fruit flies on the island of Kauai diversified very rapidly from a single ancestor that colonized the island. This would be an example of Question 16 options: prezygotic isolation gene flow disruptive selection regional adaptive radiation
Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
The Hawaiian Islands were "born" in the middle of the Pacific Ocean from volcanic eruptions. A genetic analysis indicates that the native species of fruit flies on the island of Kauai diversified very rapidly from a single ancestor that colonized the island. This would be an example of
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prezygotic isolation
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gene flow
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disruptive selection |
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regional adaptive radiation
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founder effects
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