The "jellyfish genes" in question are probably GFP[1] (Green fluorescent protein), which has been spliced into many organisms. You can even buy fish with the ge

The "jellyfish genes" in question are probably GFP[1] (Green fluorescent protein), which has been spliced into many organisms. You can even buy fish with the gene[2]. [1] http://en.wikipedia.org/wiki/Green_fluorescent_protein http://en.wikipedia.org/wiki/Green_fluorescent_protein [2] http://en.wikipedia.org/wiki/GloFish http://en.wikipedia.org/wiki/GloFish