Question

which statement is evidence used to support the endosymbiotic theory?
○ mitochondria and chloroplasts contain their own dna.
○ mitochondria and chloroplasts are surrounded by one membrane.
○ mitochondria and chloroplasts reproduce similar to eukaryotic cells: through mitosis.
done

Explanation:

The endosymbiotic theory states that mitochondria and chloroplasts were once prokaryotes. Having their own DNA (like prokaryotes) supports this. Mitochondria and chloroplasts have two membranes (not one), and they reproduce via binary fission (not mitosis, which is eukaryotic). So the correct statement is "Mitochondria and chloroplasts contain their own DNA."

Answer:

A. Mitochondria and chloroplasts contain their own DNA.