Fig. 3From: Playing with genetic and epigenetic concepts at the school: an Epigenetic Orchestra projectExamples of 3D prototypes of double-helix DNA made with Plasticidine and sweets. Note the presence of a few orange balls /sweets external to the double-helix and always associated to the Cytosine (blue Plasticidine balls, white sweets) to symbolize methylations (Courtesy of Monica Medrano and María Teresa Boquete)Back to article page