Why might a phylogeny based only on molecular data show a different pattern of r
ID: 194025 • Letter: W
Question
Why might a phylogeny based only on molecular data show a different pattern of relationships than a phylogeny of the same taxa that is based only on morphological traits? (Select all that apply.) The molecular data may be based on the analysis of introns, which aren't expressed and don't contribute to the evolutionary history of a group of taxa. Gene sequences always provide more data than morphological traits. Some highly conserved genetic sequences can result in unrelated species appearing closely related in a molecular phylogeny, and not reflect the same pattern as the morphologic phylogeny. Morphological analyses always provide more data because each morphological trait is the result of the expression of many genes. Gene sequence changes may not result in morphological changes. Why might a phylogeny based only on molecular data show a different pattern of relationships than a phylogeny of the same taxa that is based only on morphological traits? (Select all that apply.) The molecular data may be based on the analysis of introns, which aren't expressed and don't contribute to the evolutionary history of a group of taxa. Gene sequences always provide more data than morphological traits. Some highly conserved genetic sequences can result in unrelated species appearing closely related in a molecular phylogeny, and not reflect the same pattern as the morphologic phylogeny. Morphological analyses always provide more data because each morphological trait is the result of the expression of many genes. Gene sequence changes may not result in morphological changes. Why might a phylogeny based only on molecular data show a different pattern of relationships than a phylogeny of the same taxa that is based only on morphological traits? (Select all that apply.) The molecular data may be based on the analysis of introns, which aren't expressed and don't contribute to the evolutionary history of a group of taxa. Gene sequences always provide more data than morphological traits. Some highly conserved genetic sequences can result in unrelated species appearing closely related in a molecular phylogeny, and not reflect the same pattern as the morphologic phylogeny. Morphological analyses always provide more data because each morphological trait is the result of the expression of many genes. Gene sequence changes may not result in morphological changes.Explanation / Answer
a phylogeny based only on molecular data show a different pattern of relationships than a phylogeny of the same taxa that is based only on morphological traits
Answer
Gene sequence changes may not result in morphological changes