Why might a phylogeny based only on molecular data show a different pattern of relationships than a phylogeny of the same taxa based only on morphological traits? select all that apply.

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23-08-2022
Biology

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Why might a phylogeny based only on molecular data show a different pattern of relationships than a phylogeny of the same taxa based only on morphological traits? select all that apply.

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tutorconsortium343 tutorconsortium343 · Answer 1 · 2022-08-29T17:36:13+02:00

A phylogeny of the identical taxa based only on morphological traits:

Some highly conserved genetic sequences may result in unrelated species appearing closely related in a molecular phylogeny, and not reflect the identical pattern as the morphologic phylogeny.Gene sequence changes might not result in morphological changes.

Morphological analyse:

Morphological analyses always provide more data because each morphological trait is that the result of the expression of many genes. Some highly conserved genetic sequences may result in unrelated species appearing closely related in a molecular phylogeny, and not reflect the identical pattern as the morphologic phylogeny.

Why is molecular data more accurate?

Phylogenetic trees reconstructed from molecular sequences are often considered more reliable than those reconstructed from morphological characters, partially because convergent evolution, which confounds phylogenetic reconstruction, is believed to be rarer for molecular sequences than for morphologies

Learn more about molecular data :

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