The question reads: \"Why have some microbiologists proposed using ribosomal RNA

Question

The question reads: "Why have some microbiologists proposed using ribosomal RNA as the basis for defining bacterial species?":
A. Bacteria vary too little in their physical and biochemical traits.
B. Ribosomal RNA is the basis for domain assignment.
C. Ribosomal RNAs are highly conserved genetic sequences present in all prokaryotes.
D. The "interbreeding population" criterion does not apply to bacteria.
E. Bacteria are not interbreeding populations, and ribosomal RNAs are highly conserved genes present in all prokaryotes.

I think it's answer E, but I'm just not sure.

Explanation / Answer

The question reads: "Why have some microbiologists proposed using ribosomal RNA as the basis for defining bacterial species?":
A. Bacteria vary too little in their physical and biochemical traits.
B. Ribosomal RNA is the basis for domain assignment.
C. Ribosomal RNAs are highly conserved genetic sequences present in all prokaryotes.
D. The "interbreeding population" criterion does not apply to bacteria.
E. Bacteria are not interbreeding populations, and ribosomal RNAs are highly conserved genes present in all prokaryotes.

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