Mitochondria (from α-proteobacterium) and chloroplasts (from cyanobacterium) arose from engulfment of prokaryotic symbionts by proto-eukaryote. Evidence: double membranes, own DNA, 70S ribosomes.
Mitochondria (from α-proteobacterium) and chloroplasts (from cyanobacterium) arose from engulfment of prokaryotic symbionts by proto-eukaryote. Evidence: double membranes, own DNA, 70S ribosomes.