We've linkurl:written in the past;http://www.the-scientist.com/article/display/24535/ about Randy Jirtle's agouti mice, which are a neat animal model for epigenetic ...

which appears as the typical tabby markings on the face with agouti tabby markings throughout the body. Tabby cats with the cinnamon ticked pattern have a copper-red coat ticked with chocolate brown.

The mice are Agouti Viable Yellow, naturally occurring mutants, which, though genetically identical, have coats that vary in color—a phenomenon that researchers have long studied as an example of ...

For instance, in normal, healthy mice, the agouti genes are kept in the "off" position by the epigenome, which attaches methyl groups to the corresponding regions of DNA, resulting in the DNA's ...