Evolutionary Biology- Inferring Biology
Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!
We build trees based on traits shared between members. The origin of a trait is an 'event', or 'change' in a lineage. Sometimes traits are lost in a group, and this too is an event or change. So... A tree that draws relationships between species with the fewest changes (origins or losses of traits) is the most tree.
...
Consider a phylogenetic tree, with branches leading to different species. What is the general criteria used for putting in branches in a tree? That is, between any two branches, what is going on with traits between the two branches?
...
Given a tree, can you identify a species that shares the most traits with another species?
...