Fluorescent ball pythons...I kid you not.

[Morphie]

i dont know if anyone noticed but these are rats not mice! look at the pics!

also if you would of payed attention to the episode on the history chammel about rats last week you would of seen that tetonic produces these and this trait is used when they add other genes besides the color gene! so these RATS (not mice)could in fact be altered genetically in other ways that could be unhealthy for the rodent in question!

They use this gene to look at what's going on in mice who are intentionally given the genes for a genetic anomaly homologous with one present in humans. That does not mean that all mice that are given GFP coding regions have one of the controlled genetic problems - they can make healthy GFP mice just as readily as inflicted ones. It's even easier.

The genetic problems you're thinking of are likely located elsewhere on the genome - probably not even the same chromosome - they have nothing to do with GFP.

what picture are you looking at? I'm sure if they know enough to alter genomes, they know what species they're working with.

holy heck, people.