A small group of finches from the mainland United States get blown off course during a hurricane and are focused to settle on an island off the coast of Georgia. Most of these birds have a recessive trait for yellow spots on their wings which is not a common trait among this speciet. Over several generations the entire population of these finches on the island have this expressive trait. This is an example of ____. A. cacogenesis B. anagenesis C. reproductive isolation D. the founder effect
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.
11. A small group of finches from the mainland United States get blown off course during a hurricane and are focused to settle on an island off the coast of Georgia. Most of these birds have a recessive trait for yellow spots on their wings which is not a common trait among this speciet. Over several generations the entire population of these finches on the island have this expressive trait. This is an example of ____.
A. cacogenesis
B. anagenesis
C. reproductive isolation
D. the founder effect
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