Video: DNA Structure
This is a great little clip that will give you a nice visual handle on what DNA looks like, and by extension, how your genetic information is arranged. These are the building blocks that all types of DNA tests are interogating. It’s truely mind boggling that it’s just a few small differences out of the hugely long sequences shown in the video that DNA testing can examine show us our ancestry or reveal a disease risk factor. Click more for the video.