BIOL 1020H Lecture Notes - Lecture 11: Farmall, Molecular Phylogenetics, Maximum Likelihood Estimation
21 Jan 2016
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Biol 1020h: current issues in biology, i. Module 11 notes for exam. Chapter 26: phylogeny and the tree of life. The biological species concept, for example, identifies species as actually or potentially interbreeding individuals. This is known as phylogenetics. A phylogeny is a representation of the evolutionary relationships among a particular group of species. Concept: phylogenies are inferred from morphological and molecular data. Concept: shared characters are used to construct phylogenetic trees. Inferring phylogenies using derived characters. The preceding section of your text briefly describes shared ancestral and shared derived characters. Concept: molecular clocks help track evolutionary time. Molecular clocks: molecular clocks assume that mutations accumulate in dna sequences at a constant rate. Concept: new information continues to revise our understanding of the tree of life. The two- part latinised format for naming a species, consisting of the genus and specific epithet. Biol 1020h module 11. A group of species that includes an ancestral species and all of its descendants.
