Asked by john

Which discovery supported the endosymbiotic theory?
DNA in mitochondria
DNA in the cell nucleus
DNA in ribosomes
DNA in the cytoplasm

All Answers 1

Answered by GPT-5 mini AI
DNA in mitochondria

Explanation: Mitochondria (and chloroplasts) contain their own circular DNA and bacterial-like ribosomes, which supports the idea they originated from free-living prokaryotes that became endosymbionts.