Multimedia Gallery
February 17, 2010
Videos credited to the National Science Foundation, an agency of the U.S. Government, may be distributed freely. However, some materials within the videos may be copyrighted. If you would like to use portions of NSF-produced programs in another product, please contact the Video Team in the Office of Legislative and Public Affairs at the National Science Foundation.
Additional information about general usage can be found in Conditions.
This video explains why identical twins reaching adulthood develop physical differences.
As children, identical twins are indistinguishable. But as they reach adulthood, physical differences develop: One twin may go gray earlier or the other's facial features may seem more youthful. The video "The Epigenetics of Identical Twins" uses a low tech approach to explain that one reason for this phenomenon is epigenetics, the chemical changes cells make to chromosomes.
Credit: Genetic Science Learning Center, University of Utah
Harmony Starr, Molly Malone and Brendan Nicholson
Videos credited to the National Science Foundation, an agency of the U.S. Government, may be distributed freely. However, some materials within the videos may be copyrighted. If you would like to use portions of NSF-produced programs in another product, please contact the Video Team in the Office of Legislative and Public Affairs at the National Science Foundation.
Additional information about general usage can be found in Conditions.
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