Why is molecular data for phylogenetic inference best analyzed with use of an explicit model of molecular evolution?
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A) This is true of morphological data, not molecular data, it is impossible to model changes in molecular sequence data because it is constantly evolving. |
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B) Because molecular data is known to only experience random changes and is constantly evolving, a chaotic model of evolution can universally be applied to molecular sequence data for phylogenetic analysis. |
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C) Because molecular data is known to experience non-random changes in terms of the likelihood of different types of mutations -- transitions vs. transversions, at different codon positions, which can be used to infer sequence evolution and relationship. |
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D) None of the above. |
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