What is the difference between a gene tree and a species tree? Explain in your own words how it is possible for gorillas and humans to share a genetic trait (such as a retroviral insertion) that chimpanzees do not share, if chimpanzees and humans are really each other's closest relatives. Given the lack of agreement between gene trees and species trees, how is it possible to reconstruct the true species tree?
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Gene trees are constructed based on genetic information obtained from the genes of organisms, while species trees are constructed based on similarities and differences in physical and genetic characteristics of species. ** Show more…
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