The 1.4 version of OnScreen DNA Model for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The most popular versions among the application users are 1.3 and 1.0. The unique identifier for this app's bundle is com.onscreen-sci.DNAModelMAS. The application is included in Education Tools. This software for Mac OS X was originally created by OnScreen Science, Inc.
From the developer:
How well can you visualize the 3D structure of the DNA molecule? Can you spot erroneous depictions of DNA as a left-handed double helix? If you're not satisfied with your level of understanding of DNA structure or would like to have at your fingertips an instant memory refresher for which nucleotides pair with each other in the double helix of DNA etc., then OnScreen DNA Model™ for OS X could be worth many times its small price to you.
You may want to check out more software for Mac, such as A Taste of OnScreen DNA™, Audio Modeling Software Center or OnScreen Barcode Scanner, which might be similar to OnScreen DNA Model.
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