The Endosymbiotic Theory is used to explain the origin of the ____ in the eukaryal cell.

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The Endosymbiotic Theory proposes that mitochondria, along with chloroplasts in photosynthetic eukaryotic cells, were originally free-living prokaryotic organisms that were engulfed by ancestral eukaryotic cells and became mutualistic endosymbionts. As a result, mitochondria contain their own DNA and reproduce independently within eukaryotic cells.

The Endosymbiotic Theory Is Used to Explain the Origin of the ____