Description:  This graphic shows the change in height of a microscopic sphere tethered to a surface by DNA. When the tether strand interacts with a particular strand of DNA they form a double helix, which shortens the tether.
Source:  UCLA
Story:  Detector senses single DNA
TRN August 27/September 3, 2003
TRN Categories:  Biotechnology
Form:  Still

 
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