How does the molecular clock work? A. It analyzes the brain functionality of two different species. B. It examines and compares the physical characteristics of two different species. C. It illustrates relationships between two different species. D. It compares the number of mutations that exist in the DNA of two different species.
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This method is based on the assumption that mutations accumulate at a relatively constant rate over time. By comparing the DNA sequences of two different species, scientists can estimate how long ago they shared a common ancestor. Show more…
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