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  • Cystic Fibrosis Mechanism and Treatment

    Cystic Fibrosis Mechanism and Treatment

    Animations

    (2 min 31 sec) Mutations in the CFTR gene, which encodes a transmembrane ion channel, cause mucus buildup in the airways of patients with cystic fibrosis.

  • 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.

  • 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.

  • Visualizing Gene-Expression Patterns

    Visualizing Gene-Expression Patterns

    Click & Learn

    Learn about the different ways scientists are able to detect when genes are being expressed in various tissues.