Photo Gallery Click the thumbnail to see a full size version of the picture. Adult mouse Adult mouse Chimera mouse produced offspring Chimeric mouse DNA molecule Embryo fusion Mice DNA Mouse embryo Mouse embryonic stem cells Mouse embryos of different ages Multi-color neural stem cells Neural stem cells Newborn mouse pup Orange Fluorescent littermates Orange Fluorescent Protein Tetraploid embryos Transgenic mice agouti coat color Transgenic mouse DNA Transgenic vectors