The following images displaying experiment which was performed on human cells in vitro. The instant experiment involved genetically modifying human cells with varying types of DNA vectors. All the vectors were coded to express a glowing green protein. Over time the human cells stopped expressing the fluorescent protein. The subtle differences in the genetic code are represented in the circular diagrams, with individual components representing sequence changes to the various vectors. Next to these diagrams are hourglass symbols which indicate how many days the human cells were producing the green protein. In the there is an actual image of the human cells used in this experiment glowing green under a fluorescence microscope, the links is indicated in the key in the right-hand corner. The human cells used were human embryonic kidney cells (HEK 293). The overall is that this information used to develop such genetic modification vectors can be used for the development of long lasted gene therapies for a wide variety of diseases. the ability of the human body to express a needed medicinal protein in certain circumstances may be clinically advantageous over traditional means of protein based therapies.