This post is bit late, I had family over whom I had not seen in a long time and chose to spend time with them. As to the post itself,  I chose "horizontal gene transfer", also know as "lateral gene transfer" as the variation for this today's class blog post. My example of it is "CRISPR CAS 9", which I once did a seminar on for a class. Here is the powerpoint of that seminar (I recommend pausing the video between "slides"):