Somerville, MA — August 31, 2007 — OnScreen Science, Inc. today announced immediate and permanent reductions of 33% to 40% on the prices of its tutorial DNA-visualization software. The new prices for the Lite, Standard, and Pro editions of OnScreen DNA are $29, $99, and $134, respectively. OnScreen DNA, which runs under Macintosh OS X and Windows XP, is designed to make the detailed structure and workings of DNA easily accessible to students at the high school level and above. This includes important details that are impossible to see with the two-dimensional ?ladder? animations commonly encountered on the internet. While aimed primarily at biology teachers, the software has been utilized by others as a self-teaching aid.

OnScreen DNA Lite uses a 3D virtual model to teach the structural details of DNA, including its double helix geometry and chemical components and bonds. OnScreen DNA adds 3D simulations of the critical DNA processes of replication and gene transcription. The Pro edition empowers and challenges users to take control of these simulations to construct DNA and RNA molecules through the proper choice of enzymes and nucleotide building blocks. In all three editions, identification of any component of the DNA is simply obtained by clicking on it. Users can rotate the DNA model and zoom in or out to see it from different perspectives even while simulations with moving components are taking place.

OnScreen DNA is available from OnScreen Science, Inc., 46 Wallace St. Somerville, MA 02144 or online at www.onscreen-dna.com. Ten-computer site licenses are available for about 3.5 times the cost of a single license. The original purchase price of any edition may be applied to the price of an upgrade, whether to an enhancement or to a site license.

OnScreen Science, Inc. publishes Ph.D.-scientist-designed software for science education tasks particularly benefiting from computer simulations. In addition to OnScreen DNA, the company also offers OnScreen Particle Physics, a highly regarded simulation of a particle detection chamber for both the Windows and Macintosh platforms.

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