<span>Bacterial genome is prone to mutational changes due to its simple nature and less efficient DNA repair mechanisms compared to humans, thus it has more chances of obtaining new genetic traits.</span>
A. They impede fish migration and spawning
There are three sources of genetic variation: mutation, gene flow, and sexual reproduction. A mutation is simply a change in the DNA.
<span>The job of these envelope extensions is to increase the bacteria's surface area so they can absorb more nutrients and grow. This is especially important in an adverse environment that lacks a lot of resources.</span>
