2._Evolutionary_theory

2._Evolutionary_theory - Development of Evolutionary Theory...

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Development of Evolutionary Theory A Brief Background Definitions Terminology Natural Selection in Action
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Background Evolution ties these two together Change through time Biological evolution is focus of this course Change in gene frequency from one generation to another
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Definitions Ontogeny = development of individual Phylogeny = historical development of groups of organisms EVOLUTION = CHANGE IN THE GENE EVOLUTION = CHANGE IN THE GENE FREQUENCY FROM ONE GENERATION TO FREQUENCY FROM ONE GENERATION TO ANOTHER ANOTHER
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The Path to Natural Selection Carolus Linnaeus developed a system of classification and laid the basis for taxonomy. John Baptiste Lamarck was the first scientist to produce an explanation for the evolutionary process.
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The Path to Natural Selection Charles Darwin added the idea of variability and survival of the fittest (natural selection). Alfred Wallace independently developed the idea of variability and survival of the fittest (natural selection).
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Charles Darwin (1809-1882) Many of his ideas were formed during the voyage of the HMS beagle. Saw biological variation within a species as critically important. Recognized the importance of sexual reproduction in increasing variation.
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Darwin’s voyage
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2._Evolutionary_theory - Development of Evolutionary Theory...

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