One of your best friends, Lisa, is an ecologist who asks you to discuss her rece

Question

One of your best friends, Lisa, is an ecologist who asks you to discuss her recent results with her. She studies a small population of dumbledore beetles on an isolated island in the Caribbean that she can reach only after a 5-hour boat trip from the nearest island. Dumbledore beetles are weak fliers and easy to observe and catch Lisa measured the allele frequency of a gene encoding wing color (blue or green) in this population in 2001 and again in 2011. She found that in 2001, the frequency of the green allele was 0.3 and the frequency of the blue allele was 0.7. In 2011, the frequency of the green allele had increased to 0.6 and that of the blue allele had decreased to 0.4. You

Explanation / Answer

B) Genetic drift.
D) Natural selection.

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