Dr. Kevin on Instagram: "WHAT'S HAPPENING HERE?? This is a brief explanation of the endosymbiotic theory, which postulates that our mitochondria (and chloroplasts, for that matter) are remnants of prokaryotic cells that our ancestral cells took up but then, for whatever reason, didn't digest. Endosymbiosis is widely accepted by the scientific community, especially as it has just recently been observed in other cells. This means that your ancestors are not just eukaryotic cells that descended fro

Dr. Kevin on Instagram: "When asexuals do the nasty. While bacteria procreate asexually, they are still capable of exchanging genetic material through a process called conjugation. Here, a pilus between the bacteria forms a channel, allowing transfer of plasmids containing various genes to be transferred from the donor to the acceptor. Unfortunately for humans, these genes may encode for antibiotic resistance, meaning that resistances can "develop" in bacterial strains far quicker than through r