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Viruses

Viruses

Viruses. Viruses contain DNA or RNA And a protein coat Some are enclosed by an envelope Some viruses have spikes. Figure 13.1. Viruses. Host range is the spectrum of host cells that a virus can infect. Most viruses infect only specific types of cells in one host

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644 views • 53 slides
Viruses, Viroids, and Prions

Viruses, Viroids, and Prions

Viruses, Viroids, and Prions. Bits and Pieces that cause disease. Viruses. Viruses contain DNA or RNA and a protein coat Some are enclosed by an envelope Some viruses have spikes Most viruses infect only specific types of cells in one host

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1.11k views • 53 slides
Chapter 13

Chapter 13

Chapter 13. Viruses, Viroids, and Prions. Viruses. Viruses contain DNA or RNA And a protein coat Some are enclosed by an envelope Some viruses have spikes Most viruses infect only specific types of cells in one host

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Ch 13

Ch 13

Ch 13. Viruses and Prions. Student Learning Outcomes. Differentiate a virus from a bacterium. Explain the difference between enveloped and nonenveloped viruses. Define viral species. Describe how bacteriophages and animal viruses are cultured.

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527 views • 29 slides
Cancer = Neoplasia

Cancer = Neoplasia

Cancer = Neoplasia. Abnormal new growth due to excessive increase in number of cells (continuous proliferation). This increase is progressive (non reversible), non physiologic , purposeless. Basic Facts: Neoplasia arises only in cells able to proliferate.

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418 views • 24 slides

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