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Showing 1-15 of 15 Resources
  • Seeing In the New Year

    Seeing In the New Year

    Image of the Week

    Multi-color labeling of photoreceptor neurons in the developing visual system of the fruit fly (Drosophila melanogaster).

  • Genetic Mutations and Disease Interactive

    Genetic Mutations and Disease Interactive

    Click & Learn

    This interactive focuses on the roles of germline and somatic cell mutations in human disease. It supports the 2013 Holiday Lectures on Science, Medicine in the Genomic Era.

  • Biological Basis of a Myth

    Biological Basis of a Myth

    Image of the Week

    Hydra is a small freshwater hydrozoan polyp that has the capacity to grow a new individual from any part of its body.

  • Colorizing Skin Cells

    Colorizing Skin Cells

    Image of the Week

    The “skinbow” zebrafish has color-coded skin cells when viewed in a microscope using UV light illumination.

  • Unconditional Love

    Unconditional Love

    Image of the Week

    A mother and her baby viewed using magnetic resonance imaging (MRI).

  • Synchronized Division

    Synchronized Division

    Image of the Week

    The early embryonic cells of the sand dollar are caught in the act of synchronized cell division.

  • Perfect Daughters

    Perfect Daughters

    Image of the Week

    Chromosomes change form as a cell divides to ensure that each daughter cell gets a full, intact copy of the genome.

  • Development of the Cerebral Cortex

    Development of the Cerebral Cortex

    Animation

    (1 min 43 sec) Most of the neurons of the cerebral cortex arise from progenitor cells that undergo repeated cell division.

  • Genetic Mutations and Disease

    Genetic Mutations and Disease

    Poster

    The poster for the 2013 Holiday Lectures on Science, Medicine in the Genomic Era, illustrates the difference between germline and somatic cell mutations.

  • Growth cones in action

    Growth cones in action

    Clip

    (34 sec) The growth cones of two neurons sense and interact with one another.

  • Creating Embryonic Stem Cell Lines

    Creating Embryonic Stem Cell Lines

    Animation

    (1 min 38 sec) The inner cell mass (ICM) cells of blastocyst-stage early human embryos can be removed and cultured. These cells can be grown in the lab indefinitely. Various growth factors cause these cells to develop into a variety of differentiated cells, such as muscle or nerve cells.

  • X Inactivation

    X Inactivation

    Animation

    (55 sec) This animation shows how the random deactivation of one of the X chromosomes in a pair can lead to a mozaicism in the expression genes. 

  • Embryonic Cell Division in C. elegans

    Embryonic Cell Division in C. elegans

    Clip

    (1 min 31 sec) Time-lapse microscopy showing cell division from 1 to 2 to 4 cell stages in C. elegans with fluorescent chromosomes.

  • MIX-1

    MIX-1

    Animation

    (3 min 39 sec) This animation shows how MIX-1 facilitates both chromosome condensation and dosage compensation.

  • Meiosis

    Meiosis

    Animation

    (5 min 53 sec) Meiosis, the form of cell division unique to egg and sperm production, sets the stage for sex determination by creating sperm that carry either an X or a Y sex chromosome. But what is it about the X or Y that determines sex? Also available in Spanish.