Which of the following observation(s) is/are most consistent with the origin of

Question

Which of the following observation(s) is/are most consistent with the origin of mitochondria?

A. Mitochondria RNA polymerases and ribosomes more closely resemble those found in eubacteria than resembling the nuclear RNA polymerases and cytoplasmic ribosomes present in eukaryotes.

B. 10-20% of all mitochondrial proteins trace their ancestry back to an original a-proteobacterial endosymbiont.

C. 10-20% of all mitochondrial proteins trace their ancestry back to multiple endosymbiotic or horizontal gene transfer events.

D. (a) & (b)

E. (a) & (c)

Explanation / Answer

The following observation(s) is/are most consistent with the origin of mitochondria:

A) Mitochondria RNA polymerases and ribosomes more closely resemble those found in eubacteria than resembling the nuclear RNA polymerases and cytoplasmic ribosomes present in eukaryotes.

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