Which bacteria are the most deadly?

Which of the following best supports the statement that mitochondria are descendants of endosymbiotic bacteria?

which of the following best supports the statement that mitochondria are descendants of endosymbiotic bacteria like cells? A. Mitochondria and bacteria posses similar ribosomes and DNA. B. Mitochondria and bacteria posses similar nuclei. C. Glycolosis occurs in both mitochondria and bacteria. D. Bothmitochondria and bacteria have microtubules. E. Neither mitochondria nor bacteria possess chloroplasts.
Answer:

A. There is strong evidence that the mitochondrial ancestor was a beta-Proteobacteria, possibly from the genus Rickettsia. Both mitochondria and bacteria contain 16S rRNA, while eukaryotic nuclei contain 18S rRNA instead. As for the other possible answers...B is wrong because neither have nuclei. C is wrong because not all bacteria carry out glycolysis. D is wrong because not all bacteria have microtubules. E is true but really has nothing to do with them being related...after all, lots of things don't have chloroplasts.

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