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  • Viruses

    • Video
    People walking on a dirt path. Buildings with corrugated metal line the road. Caption: The rotavirus is a tiny virus born in water.

    Defines viruses and traces the way they enter and infect the human body. Discusses virus mutation. Documents researchers working to develop vaccines from viruses. Explains why retroviruses pose a problem to scientists every year.

    (Source: DCMP)

  • Tangle of thread-like substance. Caption: consisted of a nucleic acid core composed of either DNA or RNA

    Part of the "Branches on the Tree of Life" series. Describes the discovery of viruses and their structure, how viruses are studied, how they infect their hosts, and how they replicate. Provides details on the T-4 bacteriophage and retroviruses, such as HIV.

    (Source: DCMP)

  • A small cell approaching a large cell. Caption: and the retroviruses are budded from the cell,

    Part of the "Visualizing Cell Processes" series. Includes the following modules: "The Protein Nature of Life," "Protein Structure," "Transcription," "Translation and Protein Synthesis," "Gene Regulation in Prokaryotes," "Classes of Eukaryote DNA," "Exons and Introns," "Mutations," and "Renegade DNA: The Viruses."

    (Source: DCMP)