Question

the endosymbiotic theory provides an explanation for the origin of chloroplasts. which trait of chloroplasts supports this explanation? chloroplasts have their own dna. chloroplasts are larger than prokaryotic cells. chloroplasts rely on proteins that are made by the cell. chloroplasts do not reproduce.

Explanation:

The endosymbiotic theory posits that chloroplasts were once free - living prokaryotes that were engulfed by a host cell. Chloroplasts having their own DNA is evidence as it is similar to prokaryotic DNA, indicating they were once independent organisms. Larger size than prokaryotic cells doesn't support the theory. Relying on cell - made proteins is not evidence for their independent origin. And chloroplasts do reproduce.

Answer:

Chloroplasts have their own DNA.