BIOB51H3 Chapter Notes - Chapter 5-6: Polytomy, Synapomorphy, Symplesiomorphy
1 Mar 2016
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Biob51 lec 05 & 6 notes p. 109-123, 137-139. Baker and palumbi sequenced dna and compared it to genetic material from known specimens. Part of the of this evolutionary tree is show here <<< An evolutionary tree is a diagram showing the history of divergence and evolutionary change leading from a single ancestral lineage to a suite of descendants. Depicts a group of organisms" genealogical relationships as they are understood according to darwin"s theory of descent with modification from common ancestors. How to read time on an evolutionary tree. Time flows from the root along the trunk, through the branches, towards the twigs. The root is on the left and time proceeds from left to right. How to read relationships on an evolutionary tree. Evolutionary relationships among species on a phylogeny are defined by the relative time elapsed since they last shared common ancestors.
