Skip to main content
Email Print Share

News Release 10-028 - Video

This video explains why identical twins reaching adulthood develop physical differences.

This material is available primarily for archival purposes. Telephone numbers or other contact information may be out of date; please see current contact information at media contacts.


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

Back to article