Digital genetic code and DNA can apparently be converted into each other using a scanner. The Materialization programs and Devirtualization programs/phenomena do this. Jeremie once materialized one of Aelita's hairs in an early experiment, in "Just in Time", and later used the same hair to restore her after she was deleted. This seems to imply that, like DNA, digital genetic code specifies the form of a virtual being.
A graphic that looks rather like DNA can often be seen on Jeremie's screen in the Lab - it is possible that this is a representation of digital genetic code. It is in the shape of a triple helix - not a double helix like normal DNA.