Biology 1001A Lecture Notes - Lecture 4: Phylogenetic Tree, Cladogenesis, Anagenesis
8 Apr 2017
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Document Summary
An entire field, phylogenetics, is based around hypothesizing evolutionary relationships by using branching tree diagrams. Tree diagrams are the most direct representation of the principle of common ancestry - the very core of evolutionary theory - and thus they must find more prominent place in the general public s understanding of evolution. Most recent common ancestor of two or more groups, given a phylogenetic tree. Occur at internal nodes between two connecting branches. Which groups are more versus less closely related to one another, given a phylogenetic tree. Groups that have a node farther back in history. Whether rotating internal nodes on a phylogenetic tree changes the information conveyed. If read properly, no the information is not changed. One must study the nodes and not the end branches to fully understand the tree. Contemporary and ancestral species on a phylogenetic tree.
