Researched
Endosymbiosis
Lynn Margulis argued in 1967 that mitochondria and chloroplasts descend from free-living bacteria that moved into early cells; DNA evidence later backed her.
Open in the interactive tree →Konstantin Mereschkowsky had proposed the idea for chloroplasts in 1905. Mitochondria and chloroplasts carry their own DNA and divide like bacteria, and gene comparisons in the 1970s and 1980s tied them to specific bacterial groups.
Prerequisites
Unlocks
- Asgard Archaea & Complex Life2015–2020Asgard archaea are tested as the host cell in the endosymbiosis that produced complex life