Biology

The correct characteristics that show the origin of mitochondria and chloroplasts are: B.Double membrane resulting from endocytosis, and they contain DNA.

This is based on the endosymbiotic theory, which suggests that mitochondria and chloroplasts were once free-living prokaryotic organisms (such as bacteria) that were engulfed by a host cell through endocytosis. Over time, they formed a symbiotic relationship with the host cell, evolving into the organelles we recognize today.

Key features supporting this theory include:

1.Double membranes: Mitochondria and chloroplasts have two membranes, which are thought to be remnants of the eng...