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  • 786333959123931661624930813080823PublicAssets/3603For fruit flies, the salivary gland is used to secrete materials for making the pupal case, the protective enclosure in which a larva transforms into an adult fly. For scientists, this gland provided one of the earliest glimpses into the genetic differences between individuals within a species. Chromosomes in the cells of these salivary glands replicate thousands of times without dividing, becoming so huge that scientists can easily view them under a microscope and see differences in genetic content between individuals. <br></br> This image was part of the <em>Life: Magnified</em> exhibit that ran from June 3, 2014, to January 21, 2015, at Dulles International Airport.Richard Fehon, University of ChicagoRichard Fehon, University of ChicagoPhotograph

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    Salivary gland in the developing fruit fly

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    For fruit flies, the salivary gland is used to secrete materials for making the pupal case, the protective enclosure in which a larva transforms into an adult fly. For scientists, this gland provided one of the earliest glimpses into the genetic differences between individuals within a species. Chromosomes in the cells of these salivary glands replicate thousands of times without dividing, becoming so huge that scientists can easily view them under a microscope and see differences in genetic content between individuals.

    This image was part of the Life: Magnified exhibit that ran from June 3, 2014, to January 21, 2015, at Dulles International Airport.

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    Richard Fehon, University of Chicago

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    Richard Fehon, University of Chicago

    Record Type

    Photograph

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    3603

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