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  • Film Guides: The Double Helix

    Film Guides: The Double Helix

    Film Guides

    The following classroom-ready resources complement The Double Helix. This short film describes the evidence that led James Watson and Francis Crick to the discovery of the double-helical structure of DNA and how the structure immediately revealed how genetic information is stored and inherited.

  • Lactose Intolerance: Fact or Fiction

    Lactose Intolerance: Fact or Fiction

    Activities

    Students evaluate and discuss several statements about lactose intolerance and evolution before and after watching the film. Also available in Spanish.

  • How Do Fibers Form?

    How Do Fibers Form?

    Activities

    A hands-on activity in which students construct models of sickle-cell hemoglobin fibers inside red blood cells to illustrate how changes in the structure of a protein can affect cell shape. Students are then asked to relate these changes to disease symptoms. Also available in Spanish.

  • Ice Crystal Formation in Icefish and Non-Icefish Blood

    Ice Crystal Formation in Icefish and Non-Icefish Blood

    Activities

    A dramatic demonstration that simulates how tiny ice crystals would form and grow in the blood of most fish if they ventured into the icy waters of the Antarctic.

  • Natural Selection and Evolution of Rock Pocket Mouse Populations

    Natural Selection and Evolution of Rock Pocket Mouse Populations

    Activities

    An activity in which students analyze amino acid data and draw conclusions about the evolution of coat color phenotypes in different rock pocket mouse populations.

  • Biochemistry and Cell Signaling Pathway of the Mc1r Gene

    Biochemistry and Cell Signaling Pathway of the Mc1r Gene

    Activities

    An advanced lesson that requires students to analyze partial DNA sequences of the Mc1r gene and identify the effects of mutations on the MC1R protein pathway.