Q: What evidence is there to support the endosymbiotic theory?
What evidence is there to support the endosymbiotic theory?
Scientists hypothesize that the first protists evolved from prokaryotes. Evidence indicates that eukaryotic organelles such as mitochondria and chloroplasts originated as prokaryotes that lived inside other, larger prokaryotic cells. This hypothesis is called the endosymbiotic hypothesis or the Theory of Endosymbiosis.
Evidence for the Theory of Endosymbiosis can be found in the DNA of mitochondria and chloroplasts, the way the organelles reproduce, and the internal structure and biochemistry of the organelles.
Primary endosymbiosis is the engulfment of a bacterium by another living organism.