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4.7 Viruses : The Enemy Within

4.7 Viruses : The Enemy Within. By: Steffany Copeland. Viruses are life mimicking particles. Latin word for poison Viruses are nonliving Viruses cannot reproduce by themselves Viral genomes can be single or double stranded

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4.7 Viruses : The Enemy Within

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  1. 4.7 Viruses : The Enemy Within By: Steffany Copeland

  2. Viruses are life mimicking particles • Latin word for poison • Viruses are nonliving • Viruses cannot reproduce by themselves • Viral genomes can be single or double stranded • Viruses range from .027mm-0.03mm • Obligate intracellular parasites • The entire infectious virus particle as a whole- virion

  3. Viruses hosts • Bacteria • Animals • Humans • Plants • Fungus • Insects

  4. Nucleic acid Protein coat or capsid Envelope Tail Tail fibers End plate Viral Structure

  5. Lytic viral growth cycle of Bacteriophage • Adsorption • Penetration • Replication • Assembly • Release

  6. Lytic replication cycle of rabies virus, an enveloped virus with a single-stranded RNA genome

  7. Virions of enveloped viruses are released by budding from an infected virus

  8. Rabies virus can be deadly • Rabies virus travels slowly to the CNS where it replicates and then travels to the salivary glands where it replicates again • There are 2 types of rabies: Furious Rabies and Dumb Rabies

  9. The End ? Questions ?

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