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Showing 1-10 of 10 Resources
  • The Biology of Skin Color

    The Biology of Skin Color

    Short Films

    (18 min 58 sec) This film explores the hypothesis that different tones of skin color in humans arose as adaptations to the intensity of ultraviolet radiation in different parts of the world.

  • Seeing Single Molecules Move

    Seeing Single Molecules Move

    Animations

    (1 min 40 sec) Single-molecule analysis using super-resolution microscopes reveals that transcription factors are not usually found bound to their binding sites on DNA.

  • The Origin of Species: Lizards in an Evolutionary Tree

    The Origin of Species: Lizards in an Evolutionary Tree

    Short Films

    (17 min 45 sec) This film explores the adaptation of anole lizards (genus Anolis) to habitats common across the islands of the Caribbean. The anoles are excellent examples of adaptive radiation, convergent evolution, and speciation through reproductive isolation.

  • Regulation of Eukaryotic DNA Transcription

    Regulation of Eukaryotic DNA Transcription

    Animations

    (2 min 5 sec) General transcription factors, activators, and repressors interact to regulate the transcription of eukaryotic DNA into RNA.

  • The Chemical Structure of DNA

    The Chemical Structure of DNA

    Animations

    (2 min 44 sec) DNA's chemical properties can be harnessed for a variety of biotechnology applications.

  • Polymerase chain reaction (PCR)

    Polymerase chain reaction (PCR)

    Animations

    (54 sec) PCR is a standard laboratory technique that allows amplification of specific segments of DNA based on complementarity.

  • Triplet code

    Triplet code

    Animations

    (1 min 8 sec) Once the structure of DNA was discovered, the next challenge was determining how the sequence of letters coded for the 20 amino acids. In theory, one or two letters can only code for 4 or 16 amino acids, respectively. A scheme using three letters, a triplet code, is the minimum necessary to encode for all the amino acids.

  • DNA Transcription (Advanced Detail)

    DNA Transcription (Advanced Detail)

    Animations

    (1 min 55 sec) This animation shows how RNA polymerase and other transcription factors interact to transcribe DNA into RNA.

  • DNA Transcription (Basic Detail)

    DNA Transcription (Basic Detail)

    Animations

    (1 min 55 sec) This animation shows the transcription of DNA into RNA.

  • Sickle Cell Anemia

    Sickle Cell Anemia

    Animations

    (1 min) Sickle cell anemia is a genetic disease that affects hemoglobin.

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