les Lab 1- Dichotomous Keys and Phylogenetic Trees -Student.docx webc ichotomous

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les Lab 1- Dichotomous Keys and Phylogenetic Trees -Student.docx webc ichotomous Keys and Phylogenetic Trees - Student.docx b 1-Dichotomous Keys and Phylogenetic Trees- Student.docx (548 KB) Page > of 12 ZOOM allowed - no polytomies such as 3-way branches (unresolved patterns of divergence) are allowed. 3. Avoid ALI analyses, they mean the same thing. For instance the two trees below are identical, with the positions of B and C merely rotated. Either is equally valid. Think carefully about what would constitute rotated versions of the same tree because, in the context of these ous

Explanation / Answer

Without changing the evolutionary relationships depicted it is possible to rotate branches around nodes . This may affect the order of terminal taxa, but does not change the information that the tree conveys. The branches that are adjacent to one another may change, but the patterns of shared ancestry do not.

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