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? Read more
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
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 excited about the topic on DNA and the Arts!
Here's how you can make some lovely DNA Art images for your Pinterest board in ... 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.
This video shows how we used the Molecule World iPad app to make an image of a folded insulin peptide. Protein folding brings the amino acid at the beginning of the protein chain near the amino acid at the other end.
People of a certain age may remember a series of really funny commercials featuring Euell Gibbonsand his famous question about whether you've ever eaten a pine tree. "Some parts are edible" said Euell.
Perhaps some parts are, but other pine tree products aren't so nourishing.
In my last post, I wrote about insulin and interesting features of the insulin structure. Some of the things I learned were really surprising. For example, I was surprised to learn how similar pig and human insulin are. I hadn't considered this before, but this made me wonder about the human insulin we used to give to one of our cats. How do cat and human insulin compare?
It turns out, that all vertebrates produce insulin, even frogs and zebra fish ... Read more
In 1925, dog sledders raced through the frozen Alaskan bush to bring antiserum to the isolated village of Nome. The antiserum arrived in time, saved the lives of many villagers from the horrors of diphtheria, and inspired the Iditarod, a famous race in celebration of the dog sledders' heroic feat. West Africa could use a similar effort today.