How does maternal DNA inheritance provide evidence for endosymbiosis?
First off, the fact that mitochondria have DNA is great evidence for endosymbiosis. Perhaps adding to the argument, however, is that only the mom’s mitochondria get passed to the offspring, independently of normal meiosis and fertilization processes. Thus, mitochondrial processes are independent of normal animal processes. Seems pretty fishy/unusual to develop that way. It suggests that some single celled ancestor of humans engulfed mitochondria, and they have coincided together, but independently, since.
