To view the animation, manipulate the controls at the bottom of the view screen. Expect several pauses as the text in this panel updates to describe the relevant step in the animation.
Part 1: The bacterial genome
The animation begins with two bacteria meeting. Each one contains its own chromosome. Above the chromosome of one bacterium (bacterium A) is a plasmid, a portion of the bacterial genome that is separate from the chromosome. The plasmid of bacterium A is also known as Resistance (R) factor. It contains genes that encode different traits and can, as you will see, be transferred from one bacterium to another, and even between different species! In the case of this animation, the R factor encodes a molecule that provides resistance to the antibacterial drug X.