BIOL 1030 Study Guide - Midterm Guide: Cytosine, Adenine, Carl Linnaeus

• School: University of Manitoba
• Department: Biological Sciences
• Course: BIOL 1030
• Professor: Kevin G.Scott

Document Summary

January 13, 2017: phylogeny and the tree of life. Birds are more closely related to dinosaurs. For scientist to determine evolutionary relationships they rst compare morphological characteristics anatomical features (physical), and behavioral. Birds and crocodiles are a part of archosavria taxonomic group. Dinosaurs shared number of features with birds, like fuse wishbone (clavicles) and shift a few pubic bone into the back: one of the most important features is the discovery of feathers dinosaurs fossils. Which was discovered in amber fossil tree resin. Molecular characteristics that includes speci c dna or protein sequences > the partial amino acid sequence from dinosaurs is similar to birds. The two characteristics combined (morphological, behavioral, molecular) create phylogeny which is an evolutionary tree. Phylogeny represents hypothesis of how di erent organisms relate to one another. Thinking of phylogeny as hypothesis allows us to illustrate the cases of an instinct group for example dinosaurs they use an approach known as re phylogenetic bracketing.