Identifying genes like HMGA2 is important, because it is evidence of natural selection. How does it demonstrate that natural selection occurred in Darwin’s finches?(1 point)

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Responses

Scientists observe the frequency of the different forms of the gene and how it changes in response to the environment.
Scientists observe the frequency of the different forms of the gene and how it changes in response to the environment.

Scientists identify different forms of the gene in individuals from the same species and observe how it shows up as a trait.
Scientists identify different forms of the gene in individuals from the same species and observe how it shows up as a trait.

Scientists mutate and modify the gene in the lab to see how changes might occur to the organism.
Scientists mutate and modify the gene in the lab to see how changes might occur to the organism.

Scientists study similar genes that also impact the same traits to see how they work together and influence one another.
Scientist…

Answer 1

Scientists observe the frequency of the different forms of the gene and how it changes in response to the environment. This demonstrates natural selection in Darwin's finches because certain forms of the gene, like HMGA2, may provide a survival advantage in specific environmental conditions. Over time, individuals with these advantageous forms of the gene are more likely to survive and reproduce, leading to a change in the frequency of the gene in the population. This process is a key mechanism of natural selection, as described by Darwin.