Digital World Biology Blog

On Sept. 30th, I'm going to be co-presenting a Bio-Link webinar on Genome Engineering with CRISPR-Cas9 with Dr. Thomas Tubon from Madison College.  If you're interested, Register here.  Since my part will be to help our audience understand the basics of this system, I prepared a short tutorial with Molecule World .  Enjoy!

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For many years, many of you have been using our popular BLAST for beginners tutorial and the BLASTing through the kingdom of life activity.

We decided with the recent updates to the NCBI BLAST pages that it was a good time to update the tutorial and some of the sequences as well.  In the tutorial, we've added images that represent the current web pages at the NCBI.  For our data set of sequences, we made a couple of the sequences longer, to remove the ambiguity in determining which sequence matches the query best.  

Of course, this meant that we also needed to update the ... Read more

by Todd Smith


Scale, proportion, and quantity belong to one of the cross cutting concepts in the next generation science standards (NGSS). According to Volume 2 of the NGSS, "in engineering, no structure could be conceived much less constructed without the engineer's precise sense of scale." The authors go on to note that scale and proportion are best understood using the scientific practice of working with models.


When scientists and engineers work with these concepts at a molecular scale, new kinds ... Read more

by Todd Smith


April 25th (4/25) is national DNA day. Digital World Biology™ is celebrating by sharing some of our favorite structures of DNA. We created these photos with Molecule World™ a new iPad app for viewing molecular structures.


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by Sandra Porter


We feel interesting and sometimes painful sensations when capsaicin, from chilis, and the allyl isothiocyantes from wasabi,bind to receptors in our mouths. In this article, we look at the structures that communicate information to the cell. How do they tell the cell that capsaicin or wasabi compounds are bound?

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by Sandra Porter

Learn how to explore molecules on your iPad or iPhone with our free Molecule World User Guide! Read more

by Sandra Porter

Digital World Biology is happy this summer to be partnering with Shoreline Community College and NWABR to help students attending their summer camps, Project Biotech and Camp BIOmed, explore 3D structures of proteins, DNA, chemicals and other substances, in Molecule World.

At one time, scientists didn't even consider ... Read more

by Sandra Porter


National DNA Day has a fun challenge for teachers and classrooms using Pinterest. Your class can join a larger, national, effort to create a National DNA Day Pinterest board by making your own class Pinterest board on DNA, genetics, and genomics.


Some possible topics are:


  • Things to do with DNA
  • DNA and health
  • DNA and the Arts
  • DNA in the News

We're really ... Read more

A real family, struggling with a history of breast cancer provides the back story for this compelling lesson on genetic testing in the Bio-ITEST Genetic Testing curriculum strand.  We recently updated lesson 5 for students using Molecule World. This video shows how we used the Molecule World iPad app to locate a mutation site and see how the cancer-causing mutation affects the BRCA1 protein.

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