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Lecture_10_13_1.Eukaryotes1

Lecture_10_13_1.Eukaryotes1 - Introduction to Eukaryotic...

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Introduction to Eukaryotic Diversity Bis 2C Lecture 10 October 13, 2008
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Outline I. More on lateral transfer II. Eukaryotes
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Outline I. More on lateral transfer
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More on lateral transfer • Vertical evolution (transmission of traits from parent to offspring) is the default • Recombination is occasional Some species do it more than others Most common WITHIN species Called lateral gene transfer when between species
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Complication 6: Selection happens for gene transfers too
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Lateral gene transfer Relatively rare Significant constraints DNA from other species does not always work well Many species have defense mechanisms Some genes more than others Selection helps overcome constraints More frequent among members of communities Despite rarity, multiplies over many years, it is very important
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II. Eukaryotes
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Reminder on Reading • Main reading: Chapter 27 • Other reading Chapter 4.3: Euk. cells Chapter 4.5: Euk. origins • Background reading of material you should know Chapter 9.3-9.5 (Cell division) Chapter 14.1, 14.2 (Genes)
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Next 3.5 lectures
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