Chapter 19: Viruses - Biology E-Portfolio

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AP Biology Reading Guide Julia Keller 12d Fred and Theresa Holtzclaw Chapter 19: Viruses 1. What was some early evidence of the existence of viruses? Why were they difficult to study? In 1883, Adolf Mayer discovered that he could transmit tobacco mosaic disease from plant to plant by rubbing sap

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Chapter 19: Viruses - Biology E-Portfolio Chapter 19: Viruses - Biology E-Portfolio
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