LIFESCI 7B Lecture 6: Phylogenetic Trees Outline
11 Aug 2018
School
Department
Course
Professor
Document Summary
Phylogenetic trees are hypotheses about the evolutionary history of a species. Monophyletic group aka clade consists of a common ancestor and at its descendants requires. Pamphyletic group includes a common ancestor and some but notate of its descendants reaming. I out for your group to a and out to remove some descendants domain. States the observed condition of a character ex : presence lawrence of lungs. Petal arrangement homology similarity due to descent from a commonancestor analogy similarity that results from wnvergentevduti= synapomorpmies character shared by members of a monophyletic group and assumed to be. Present in their most recent common ancestor cladistics. Phylogenetic reconstruction based on evolutionary changes in characters. Parsimony the simplest tree is favored the one that requires the of least changes nucleotides can represent that many characters. Dna sentence molecular by data thousands complements comparative morphology when reconstructing phylogenetic history. Preserved in sedimentary was marine habitats are more likely to be.
