Molecular sequencing suggests that mitochondria arose from a group of prokaryotic organisms within the
A) Crenarchaeota.
B) cyanobacteria.
C) iron-oxidizing bacteria.
D) Alphaproteobacteria.

Question

Quizplus · Accepted Answer

Molecular sequencing data has shown that mitochondria are most closely related to Alphaproteobacteria, suggesting that they arose from an endosymbiotic relationship between these bacteria and the ancestors of eukaryotic cells.

Molecular Sequencing Suggests That Mitochondria Arose from a Group of Prokaryotic