Question

ribosomal rna (rrna) nucleotide sequences are suitable for phylogenetic analysis of prokaryotes, because rrna evolves rapidly. is only present in certain species of bacteria. evolves relatively slowly and is present in all free - living organisms. is often a product of lateral gene transfer. performs functions unique to every organism.

Explanation:

Ribosomal RNA (rRNA) is highly conserved across species as it is essential for ribosome - function in protein synthesis. Its slow - evolving nature makes it useful for phylogenetic analysis to determine evolutionary relationships among prokaryotes.

Answer:

evolves relatively slowly and is present in all free - living organisms.