BIO153H5 Lecture Notes - Lecture 4: Mutation Rate, Symplesiomorphy, Phylogenetic Tree
Document Summary
What assumptions do we have to make in order for this assumption to be valid (little red riding hood)? characters have to be heritable, but with stories, they are written and those texts are passed on. Monophyletic is a one stemmed group and includes all the descendants some but not all the common descendants from a common ancestor are called para descendants from multiple common ancestors from the same taxa. Mono is the only one that shows evolutionary relatedness in the way that we want it reflected on a phylogenetic tree. Para and poly exist in some trees because of a lack of info making the mono group possible for all groups. Terms are relative dependent on what scale u analyze the data. Very diff living species descend from the same ancestor. For a) ancestral species don"t have to look like their descendants and finding them in the same strata doesn"t matter. Mutation rate stays the same across time.
