prion bacteria virus Winter 2009 post

prion bacteria virus Winter 2009 post - Prions x Pathogenic...

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Prions x Pathogenic Proteins ! Spongiform Encephalopathies x Cause Nerve Tissue to Become Spongy ! Mad Cow ?? Scrapie ?? x Cause of “Mad Cow Disease” ! Spread ?? x Spread by Transplant / Consumption of Infested Tissue ! Notes : Bacteria
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Bacteria d 5 Characteristics : 1) All Prokaryotic Cells (Kingdom Monera) : 2) Reproduce by Binary Fission : 3) Peptidoglycan : 4) Single circular Strand of DNA (Cell Itself) : s Many Have Plasmids : (Genetic Engineering) s Additional DNA = Extra Characters : 5) Widest Diversity of Metabolic Activity : s Bacteria Occur : EVERYWHERE Bacterial Types s Extremely Difficult to Classify ! s Grouped by : Shape ; Gram Stain ; Habitat ! Habitat : Where they live !! s Gram Positive ! s Gram Negative ! Bacterial Shapes !! x Shapes : 3 most common ! x Coccus = ( Berries ) x Bacillus = ( Staff ) x Spiral = Various Spiral Shaped Bacteria ! Illness X Bacteria Cause Approximately ____________________________% of Human Illnesses ? X
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prion bacteria virus Winter 2009 post - Prions x Pathogenic...

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