The CRISPR/Cas system (Clustered regularly interspaced short palindromic repeats) is a prokaryotic immune system that confers resistance to foreign genetic elements such as those present within plasmids and phages, and provides a form of acquired immunity. [Image via. Text via]
We’ve discussed the chemical nature of life; which is all about molecules capable of forming an increasingly complex–and almost infinite–set of bio-machines. In other words, the stuff of life is all about the right chemistry–for example, polymers that can store and manage information.
All life on Earth can do this, thanks to nucleic acids. The following 16 minute film shows what these molecules have been doing for millions of years, in order to defend bacteria from their oldest foe–which is ours as well–the virus. Scientists have harnessed this bio-molecular immune system, and used it to edit, remix, and shuffle our own nucleic acids.
Keep in mind that many things about this video will become clearer during the 2nd semester of AP Bio. Nevertheless, I highly recommend watching the film with everything we have said about bio-molecules–especially nucleic acids & polypeptides–in mind: