The pros and cons Pros: -Your internal organs are visible through the skin allowing you to track them during your entire life cycle. - Help visually study some diseases and the effect of certain medications without having to dissect them. - You can see through the skin the way in which a cancer appears and develops. - You can also see how toxins affect the bones, liver and other organs making it simpler and cheaper. - It is possible to include a fluorescent protein to study its genes in more detail.