Question Detail
Question
The endosymbiotic theory explains the origin of which organelles in eukaryotic cells?
Correct Answer
Option B is the correct answer.
Detailed Explanation
The endosymbiotic theory proposes that mitochondria and chloroplasts originated from free-living prokaryotic cells (an aerobic bacterium and a photosynthetic cyanobacterium, respectively) that were engulfed by a host cell and evolved into organelles.
Hint
These organelles have their own DNA and double membranes.