I found this link whilst researching for my #BS1015 tutorial presentation on the Nobel Prize for Chemistry 2008, which was awarded for the discovery and development of green fluorescent protein in jellyfish. Due to this work, GFP can be tagged into certain cells, allowing them to be tracked and observed. In this recent paper (2010) this was done by transfering bacterial plasmids containing genes for GFP into bone marrow. This shows just how relevent to current medical treatments this discovery is. The paper is also relevent to the methods of transformation discussed in lectures. - Christopher Jones