The endosymbiotic hypothesis is generally accepted as the origin of two eukaryotic organelles: mitochondria and chloroplasts.

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The endosymbiotic hypothesis proposes that mitochondria and chloroplasts were once free-living prokaryotes that were engulfed by another cell and eventually became integrated as organelles within eukaryotic cells. This hypothesis is widely accepted by the scientific community as the origin of these two organelles in eukaryotic cells.

The Endosymbiotic Hypothesis Is Generally Accepted as the Origin of Two