Gene Construction Kit® (GCK) is a useful tool for plasmid mapping, cloning simulation, and DNA analysis. It has been consistently reviewed as being one of the easiest to use applications for simulating multi-step cloning operations, and offers extensive flexibility in the graphical formatting of DNA sequences - and - generating those colorful, customized plasmid maps seen in publications. You can easily copy and paste grapical maps from GCK to image editing programs, or even create hi-res PDF (Mac) or XPS (Win) exports from within the program. It's been around since the mid-90's, and was one of, if not "the very first software" for performing these types of graphical manipulations of DNA sequence data. More information, and a free demo version is available from the website: http://www.textco.com Check it out! More social network pages: Google+: https://plus.google.com/116524918494656661140