Learn about our Editorial Policies. Brown and yellow mice nestle side by side in their cages in Anne Ferguson-Smith’s molecular genetics lab at the University of Cambridge. The mice are Agouti Viable ...

In cat genetics, the brown color results from a different allele ... The gene that creates the orange and cream colors does not allow for the non-agouti (solid) expression. Sometimes called ...

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 ...