What are the comparative strengths and weaknesses of the endosymbiotic and the autogenic hypotheses?

The endosymbiotic hypothesis posits that eukaryotic cells originated through symbiotic relationships between different species of prokaryotes, which explains the presence of mitochondria and chloroplasts with their own DNA. Its strength lies in the genetic and structural similarities between these organelles and prokaryotes, providing strong evolutionary support. However, it may struggle to explain the full complexity of eukaryotic cell structures and functions. In contrast, the autogenic hypothesis suggests that eukaryotic cells evolved from prokaryotic ancestors through internal compartmentalization, emphasizing the role of cellular mechanisms. While it accounts for cellular complexity, it lacks the compelling evolutionary evidence seen in the endosymbiotic model.